5-18更新，全AI写的音乐播放器来了，大家拿去魔改玩吧(能下歌词及封面啦啦啦）。。

liuyang207

2025-5-18 更新。
@top777  首先感谢top777的下载歌词及封面的代码，让这个播放Mp3的小软件有了质的飞越。
现在软件启动时会自动下载播放列表中歌曲的歌词及封面并内嵌（如有则跳过），所以，你可能放着放着就发现歌曲有歌词和封面了（第一次启动时因为还没有添加歌曲列表，添加后播放列表中右键手动下载）。



--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------一直想做一个界面好看点的音乐播放器，今天在GPT-4.1的神功下，小半天的时间总算搞好了。有旋转的黑胶唱片封面、浮动的歌词显示。（程序读取歌曲内嵌的封面和歌词及目录下同名LRC。）
全AI写的，我没有写一句程序，大家可以随意魔改自己想要的功能。
目录里有编译好的EXE文件，也有源码。https://www.alipan.com/s/w2eqoL2fZbw
                                                                       https://pan.baidu.com/s/1hj6i3hBpidwD7NXy2GMh0Q?pwd=uky8    提取码: uky8
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import sys import os from PyQt5.QtWidgets import (     QApplication, QWidget, QLabel, QPushButton, QSlider, QHBoxLayout, QVBoxLayout, QGridLayout, QFileDialog, QListWidget, QListWidgetItem, QMenu ) from PyQt5.QtCore import Qt, QTimer, QUrl, QByteArray, pyqtSignal from PyQt5.QtGui import QPixmap, QPainter, QTransform, QPainterPath, QFont, QColor, QLinearGradient, QBrush, QPen, QCursor from mutagen.mp3 import MP3 from mutagen.id3 import ID3, APIC from PyQt5.QtMultimedia import QMediaPlayer, QMediaContent import vlc import re   def resource_path(relative_path):     if hasattr(sys, '_MEIPASS'):         return os.path.join(sys._MEIPASS, relative_path)     return os.path.join(os.path.abspath("."), relative_path)   # 旋转封面控件 class RotatingCover(QLabel):     def __init__(self, song_path, default_cover="fm.png"):         super().__init__()         self.angle = 0         self.pixmap = self.load_cover(song_path, default_cover)         if self.pixmap.isNull():             self.setText("未找到封面")             self.setStyleSheet("color: #fff; background: #666; border-radius: 125px; font-size: 20px;")         self.timer = QTimer(self)         self.timer.timeout.connect(self.rotate)         self.timer.start(50)  # 旋转速度       def load_cover(self, song_path, default_cover):         # 1. 尝试同名jpg         base, _ = os.path.splitext(song_path)         jpg_path = base + ".jpg"         if os.path.exists(jpg_path):             return QPixmap(jpg_path)         # 2. 尝试MP3内嵌封面         try:             audio = MP3(song_path, ID3=ID3)             for tag in audio.tags.values():                 if isinstance(tag, APIC):                     ba = QByteArray(tag.data)                     pixmap = QPixmap()                     pixmap.loadFromData(ba)                     if not pixmap.isNull():                         return pixmap         except Exception as e:             pass         # 3. 默认封面         if os.path.exists(default_cover):             return QPixmap(default_cover)         return QPixmap()  # 空pixmap       def rotate(self):         if self.pixmap.isNull():             return         self.angle = (self.angle + 2) % 360         target_size = 250         # 只旋转封面         cover_scaled = self.pixmap.scaled(target_size, target_size, Qt.KeepAspectRatioByExpanding, Qt.SmoothTransformation)         cover_rotated = cover_scaled.transformed(QTransform().rotate(self.angle), Qt.SmoothTransformation)         # 裁剪为圆形         cover_circle = QPixmap(target_size, target_size)         cover_circle.fill(Qt.transparent)         painter = QPainter(cover_circle)         painter.setRenderHint(QPainter.Antialiasing)         path = QPainterPath()         path.addEllipse(0, 0, target_size, target_size)         painter.setClipPath(path)         x = (target_size - cover_rotated.width()) // 2         y = (target_size - cover_rotated.height()) // 2         painter.drawPixmap(x, y, cover_rotated)         painter.end()         self.setPixmap(cover_circle)       def setCover(self, song_path, default_cover="fm.png"):         self.pixmap = self.load_cover(song_path, default_cover)   class CoverWidget(QWidget):     def __init__(self, default_cover="fm.png"):         super().__init__()         self.setFixedSize(250, 250)         self.bg_pixmap = QPixmap(default_cover) if os.path.exists(default_cover) else QPixmap()         self.cover_pixmap = QPixmap()         self.angle = 0         self.timer = QTimer(self)         self.timer.timeout.connect(self.rotate)         self.timer.start(50)         self.rotate()         self.default_cover = default_cover       def rotate(self):         self.angle = (self.angle + 2) % 360         self.update()       def setCover(self, song_path):         pixmap = self.load_cover(song_path, self.default_cover)         self.cover_pixmap = pixmap         self.update()       def load_cover(self, song_path, default_cover):         if not song_path or not os.path.exists(song_path):             return QPixmap(default_cover) if os.path.exists(default_cover) else QPixmap()         # 1. 尝试同名jpg         base, _ = os.path.splitext(song_path)         jpg_path = base + ".jpg"         if os.path.exists(jpg_path):             return QPixmap(jpg_path)         # 2. 尝试MP3内嵌封面         try:             audio = MP3(song_path, ID3=ID3)             for tag in audio.tags.values():                 if isinstance(tag, APIC):                     ba = QByteArray(tag.data)                     pixmap = QPixmap()                     pixmap.loadFromData(ba)                     if not pixmap.isNull():                         return pixmap         except Exception as e:             pass         # 3. 默认封面         if os.path.exists(default_cover):             return QPixmap(default_cover)         return QPixmap()  # 空pixmap       def paintEvent(self, event):         painter = QPainter(self)         painter.setRenderHint(QPainter.Antialiasing)           # 1. 画旋转后的 fm.png         if not self.bg_pixmap.isNull():             bg = self.bg_pixmap.scaled(250, 250, Qt.KeepAspectRatio, Qt.SmoothTransformation)             # 以中心为原点旋转             painter.save()             painter.translate(self.width() // 2, self.height() // 2)             painter.rotate(self.angle)             painter.translate(-bg.width() // 2, -bg.height() // 2)             painter.drawPixmap(0, 0, bg)             painter.restore()           # 2. 画旋转后的封面（内切圆，直径130，居中）         if not self.cover_pixmap.isNull():             size = 130             # 1. 先裁剪为正方形             src = self.cover_pixmap             w, h = src.width(), src.height()             if w != h:                 side = min(w, h)                 x = (w - side) // 2                 y = (h - side) // 2                 src = src.copy(x, y, side, side)             # 2. 缩放             cover = src.scaled(size, size, Qt.KeepAspectRatio, Qt.SmoothTransformation)             # 3. 裁剪为圆形             cover_circle = QPixmap(size, size)             cover_circle.fill(Qt.transparent)             p = QPainter(cover_circle)             p.setRenderHint(QPainter.Antialiasing)             path = QPainterPath()             path.addEllipse(0, 0, size, size)             p.setClipPath(path)             p.drawPixmap(0, 0, cover)             p.end()             # 4. 以中心为原点旋转             painter.save()             painter.translate(self.width() // 2, self.height() // 2)             painter.rotate(self.angle)             painter.translate(-size // 2, -size // 2)             painter.drawPixmap(0, 0, cover_circle)             painter.restore()           painter.end()   # 动态歌词控件（简化版） class LyricLabel(QWidget):     def __init__(self):         super().__init__()         self.lyrics = []  # [(time, text), ...]         self.current_index = 0         self.setMinimumHeight(120)         self.setStyleSheet("background: transparent;")         self.color_main = QColor("#fff")         self.color_other = QColor("#aaa")       def setDemoText(self, text):         # 只显示一行小字号的提示         self.lyrics = []         self.current_index = 0         self.demo_text = text         self.update()       def setLyrics(self, lyrics):         self.lyrics = lyrics         self.current_index = 0         self.demo_text = None         self.update()       def setCurrentTime(self, cur_time):         self.cur_time = cur_time  # 记录当前时间         idx = 0         for i, (t, _) in enumerate(self.lyrics):             if cur_time >= t:                 idx = i             else:                 break         if idx != self.current_index:             self.current_index = idx             self.update()         else:             self.update()  # 即使index没变，也要刷新实现平滑       def paintEvent(self, event):         painter = QPainter(self)         painter.setRenderHint(QPainter.Antialiasing)         w, h = self.width(), self.height()           # 计算要显示的歌词行         lines = []         for offset in range(-2, 3):             idx = self.current_index + offset             if 0 <= idx < len(self.lyrics):                 lines.append((offset, self.lyrics[idx][1]))         total_lines = len(lines)         if total_lines == 0:             # demo_text             if hasattr(self, "demo_text") and self.demo_text:                 font = QFont("微软雅黑", 13)                 painter.setFont(font)                 painter.setPen(QColor("#aaa"))                 painter.drawText(0, 0, w, h, Qt.AlignHCenter | Qt.AlignVCenter, self.demo_text)             return           # 1. 先确定最大允许的行高         max_line_height = h // max(total_lines, 1)           # 2. 计算主行最大字号         main_text = lines[[o for o, _ in lines].index(0)][1] if any(o == 0 for o, _ in lines) else lines[0][1]         if not main_text.strip():             main_text = "啊"  # 占位符，防止空行导致字号过大         main_font_size = max_line_height         while main_font_size > 10:             font_main = QFont("微软雅黑", main_font_size, QFont.Bold)             painter.setFont(font_main)             rect = painter.fontMetrics().boundingRect(main_text)             if rect.width() <= w * 0.95 and rect.height() <= max_line_height * 0.95:                 break             main_font_size -= 1         font_main = QFont("微软雅黑", main_font_size, QFont.Bold)         other_font_size = int(main_font_size * 0.7)         font_other = QFont("微软雅黑", other_font_size)         painter.setFont(font_main)         line_height = max(painter.fontMetrics().height(), int(h / max(total_lines, 1)))           # ====== 平滑滚动核心 ======         # 当前歌词时间         cur_time = None         if hasattr(self, "parent") and hasattr(self.parent(), "vlc_player"):             cur_time = self.parent().vlc_player.get_time() / 1000         elif hasattr(self, "cur_time"):             cur_time = self.cur_time         else:             cur_time = 0           # 当前行和下一行的时间         cur_idx = self.current_index         cur_line_time = self.lyrics[cur_idx][0] if self.lyrics else 0         next_line_time = self.lyrics[cur_idx+1][0] if (self.lyrics and cur_idx+1 < len(self.lyrics)) else cur_line_time+2           # 计算当前行到下一行的进度百分比         if next_line_time > cur_line_time:             percent = min(max((cur_time - cur_line_time) / (next_line_time - cur_line_time), 0), 1)         else:             percent = 0           # 歌词整体Y轴平滑上移         scroll_offset = -percent * line_height           # 歌词整体垂直居中         start_y = (h - total_lines * line_height) // 2 + scroll_offset           for i, (offset, text) in enumerate(lines):             y = start_y + i * line_height + line_height // 2             if offset == 0:                 painter.setFont(font_main)                 # ====== 彩虹色高亮 ======                 grad = QLinearGradient(0, y-line_height//2, w, y+line_height//2)                 for j in range(7):                     grad.setColorAt(j/6, QColor.fromHsv(int((j*60 + (cur_time*60)%360)%360), 255, 255))                 painter.setPen(QPen(QBrush(grad), 0))             else:                 painter.setFont(font_other)                 painter.setPen(self.color_other)             painter.drawText(0, int(y-line_height//2), w, line_height, Qt.AlignHCenter | Qt.AlignVCenter, text)   class PlaylistWidget(QListWidget):     favSong = pyqtSignal(str)       def __init__(self, parent=None):         super().__init__(parent)         self.setStyleSheet("font-size:18px;background:#222;color:#fff;")         self.setDragDropMode(QListWidget.InternalMove)         self.setContextMenuPolicy(Qt.CustomContextMenu)         self.customContextMenuRequested.connect(self.show_menu)         self.model().rowsMoved.connect(self.on_rows_moved)       def show_menu(self, pos):         menu = QMenu(self)         act_fav = menu.addAction("收藏该歌曲")         act_del = menu.addAction("删除选中项")         act_clear = menu.addAction("清空列表")         action = menu.exec_(self.mapToGlobal(pos))         if action == act_fav:             self.fav_selected()         elif action == act_del:             self.delete_selected()         elif action == act_clear:             self.clear_playlist()       def delete_selected(self):         for item in self.selectedItems():             row = self.row(item)             self.takeItem(row)             if hasattr(self.parent(), "sync_song_list"):                 self.parent().sync_song_list()       def clear_playlist(self):         self.clear()         if hasattr(self.parent(), "sync_song_list"):             self.parent().sync_song_list()       def on_rows_moved(self, *args):         if hasattr(self.parent(), "sync_song_list"):             self.parent().sync_song_list()       def fav_selected(self):         for item in self.selectedItems():             song = item.toolTip()             self.favSong.emit(song)   class FloatingLyricWindow(QWidget):     EDGE_MARGIN = 8  # 边缘判定宽度       def __init__(self):         super().__init__()         self.setWindowFlags(             Qt.FramelessWindowHint |             Qt.WindowStaysOnTopHint |             Qt.Tool         )         self.setAttribute(Qt.WA_TranslucentBackground)         self.setWindowOpacity(0.85)  # 半透明         self.lyric = FloatingLyricLabel()  # 只显示2行         layout = QVBoxLayout()         layout.setContentsMargins(16, 16, 16, 16)         layout.addWidget(self.lyric)         self.setLayout(layout)         self.resize(800, 100)         desktop = QApplication.desktop()         self.move(             (desktop.width() - self.width()) // 2,             desktop.height() - 150         )         # 拖动和缩放相关         self._move_drag = False         self._move_DragPosition = None         self._resize_drag = False         self._resize_dir = None       def paintEvent(self, event):         painter = QPainter(self)         painter.setRenderHint(QPainter.Antialiasing)         rect = self.rect()         color = QColor(30, 30, 30, 200)  # 深色半透明         painter.setBrush(color)         painter.setPen(Qt.NoPen)         painter.drawRoundedRect(rect, 18, 18)       def mousePressEvent(self, event):         if event.button() == Qt.LeftButton:             pos = event.pos()             margin = self.EDGE_MARGIN             rect = self.rect()             # 判断是否在边缘             if pos.x() < margin and pos.y() < margin:                 self._resize_drag = True                 self._resize_dir = 'topleft'             elif pos.x() > rect.width() - margin and pos.y() < margin:                 self._resize_drag = True                 self._resize_dir = 'topright'             elif pos.x() < margin and pos.y() > rect.height() - margin:                 self._resize_drag = True                 self._resize_dir = 'bottomleft'             elif pos.x() > rect.width() - margin and pos.y() > rect.height() - margin:                 self._resize_drag = True                 self._resize_dir = 'bottomright'             elif pos.x() < margin:                 self._resize_drag = True                 self._resize_dir = 'left'             elif pos.x() > rect.width() - margin:                 self._resize_drag = True                 self._resize_dir = 'right'             elif pos.y() < margin:                 self._resize_drag = True                 self._resize_dir = 'top'             elif pos.y() > rect.height() - margin:                 self._resize_drag = True                 self._resize_dir = 'bottom'             else:                 self._move_drag = True                 self._move_DragPosition = event.globalPos() - self.pos()             event.accept()       def mouseMoveEvent(self, event):         if self._move_drag and event.buttons() == Qt.LeftButton:             self.move(event.globalPos() - self._move_DragPosition)             event.accept()         elif self._resize_drag and event.buttons() == Qt.LeftButton:             gpos = event.globalPos()             geo = self.geometry()             minw, minh = 200, 50             if self._resize_dir == 'left':                 diff = gpos.x() - geo.x()                 neww = geo.width() - diff                 if neww > minw:                     geo.setLeft(gpos.x())             elif self._resize_dir == 'right':                 neww = gpos.x() - geo.x()                 if neww > minw:                     geo.setWidth(neww)             elif self._resize_dir == 'top':                 diff = gpos.y() - geo.y()                 newh = geo.height() - diff                 if newh > minh:                     geo.setTop(gpos.y())             elif self._resize_dir == 'bottom':                 newh = gpos.y() - geo.y()                 if newh > minh:                     geo.setHeight(newh)             elif self._resize_dir == 'topleft':                 diffx = gpos.x() - geo.x()                 diffy = gpos.y() - geo.y()                 neww = geo.width() - diffx                 newh = geo.height() - diffy                 if neww > minw:                     geo.setLeft(gpos.x())                 if newh > minh:                     geo.setTop(gpos.y())             elif self._resize_dir == 'topright':                 diffy = gpos.y() - geo.y()                 neww = gpos.x() - geo.x()                 newh = geo.height() - diffy                 if neww > minw:                     geo.setWidth(neww)                 if newh > minh:                     geo.setTop(gpos.y())             elif self._resize_dir == 'bottomleft':                 diffx = gpos.x() - geo.x()                 neww = geo.width() - diffx                 newh = gpos.y() - geo.y()                 if neww > minw:                     geo.setLeft(gpos.x())                 if newh > minh:                     geo.setHeight(newh)             elif self._resize_dir == 'bottomright':                 neww = gpos.x() - geo.x()                 newh = gpos.y() - geo.y()                 if neww > minw:                     geo.setWidth(neww)                 if newh > minh:                     geo.setHeight(newh)             self.setGeometry(geo)             event.accept()         # 无论是否拖动，都要设置光标         self.update_cursor(event.pos())       def mouseReleaseEvent(self, event):         self._move_drag = False         self._resize_drag = False         self._resize_dir = None       def setLyrics(self, lyrics):         self.lyric.setLyrics(lyrics)       def setCurrentTime(self, time):         self.lyric.setCurrentTime(time)       def update_cursor(self, pos):         margin = self.EDGE_MARGIN         rect = self.rect()         if (pos.x() < margin and pos.y() < margin) or (pos.x() > rect.width() - margin and pos.y() > rect.height() - margin):             self.setCursor(Qt.SizeFDiagCursor)         elif (pos.x() > rect.width() - margin and pos.y() < margin) or (pos.x() < margin and pos.y() > rect.height() - margin):             self.setCursor(Qt.SizeBDiagCursor)         elif pos.x() < margin or pos.x() > rect.width() - margin:             self.setCursor(Qt.SizeHorCursor)         elif pos.y() < margin or pos.y() > rect.height() - margin:             self.setCursor(Qt.SizeVerCursor)         else:             self.setCursor(Qt.ArrowCursor)       def enterEvent(self, event):         self.update_cursor(self.mapFromGlobal(QCursor.pos()))       def leaveEvent(self, event):         self.setCursor(Qt.ArrowCursor)   class FloatingLyricLabel(LyricLabel):     def paintEvent(self, event):         painter = QPainter(self)         painter.setRenderHint(QPainter.Antialiasing)         w, h = self.width(), self.height()           # 只显示当前行和下一行，且排除空行         lines = []         idx = self.current_index         # 找到当前行及下一个非空行         count = 0         while idx < len(self.lyrics) and count < 2:             text = self.lyrics[idx][1].strip()             if text:                 lines.append(text)                 count += 1             idx += 1         # 如果不足两行，补空字符串         while len(lines) < 2:             lines.append("")           if not any(lines):             # 没有歌词，显示demo_text             if hasattr(self, "demo_text") and self.demo_text:                 font = QFont("微软雅黑", int(h * 0.35), QFont.Bold)                 painter.setFont(font)                 painter.setPen(QColor("#aaa"))                 painter.drawText(0, 0, w, h, Qt.AlignHCenter | Qt.AlignVCenter, self.demo_text)             return           main_text = lines[0]         next_text = lines[1]           # 计算主行和下一行的最大字号，兼顾宽度和高度         def fit_font_size(text, max_font_size, max_width, max_height, bold=False):             font_size = max_font_size             while font_size > 10:                 font = QFont("微软雅黑", font_size, QFont.Bold if bold else QFont.Normal)                 painter.setFont(font)                 rect = painter.fontMetrics().boundingRect(text)                 if rect.width() <= max_width * 0.95 and rect.height() <= max_height * 0.95:                     break                 font_size -= 1             return font_size           # 预设主行和下一行高度比例         main_ratio = 0.58         next_ratio = 0.28         gap = int(h * 0.08)         main_max_height = h * main_ratio         next_max_height = h * next_ratio           # 先用最大高度和宽度分别拟合字号         main_font_size = fit_font_size(main_text, int(main_max_height), w, main_max_height, bold=True)         next_font_size = fit_font_size(next_text, int(next_max_height), w, next_max_height)           font_main = QFont("微软雅黑", main_font_size, QFont.Bold)         font_next = QFont("微软雅黑", next_font_size)           # 重新计算行高         painter.setFont(font_main)         main_line_height = painter.fontMetrics().height()         painter.setFont(font_next)         next_line_height = painter.fontMetrics().height()         total_height = main_line_height + next_line_height + gap         start_y = (h - total_height) // 2           # 当前行：彩虹色高亮         painter.setFont(font_main)         grad = QLinearGradient(0, start_y, w, start_y + main_line_height)         cur_time = getattr(self, "cur_time", 0)         for j in range(7):             grad.setColorAt(j/6, QColor.fromHsv(int((j*60 + (cur_time*60)%360)%360), 255, 255))         painter.setPen(QPen(QBrush(grad), 0))         painter.drawText(0, int(start_y), w, main_line_height, Qt.AlignHCenter | Qt.AlignVCenter, main_text)           # 下一行：灰色         painter.setFont(font_next)         painter.setPen(QColor(180, 180, 180, 180))         painter.drawText(0, int(start_y + main_line_height + gap), w, next_line_height, Qt.AlignHCenter | Qt.AlignVCenter, next_text)   class CustomTitleBar(QWidget):     def __init__(self, parent=None):         super().__init__(parent)         self.setFixedHeight(40)         self.setStyleSheet("""             background: #222;             border-top-left-radius: 18px;             border-top-right-radius: 18px;         """)         layout = QHBoxLayout(self)         layout.setContentsMargins(16, 0, 8, 0)         self.title = QLabel("Winamp 音乐播放器")         self.title.setStyleSheet("color: #fff; font-size: 18px; font-weight: bold;")         layout.addWidget(self.title)         layout.addStretch()         self.btn_min = QPushButton("—")         self.btn_min.setFixedSize(32, 32)         self.btn_min.setStyleSheet("color:#fff; background:transparent; font-size:20px; border:none;")         self.btn_close = QPushButton("×")         self.btn_close.setFixedSize(32, 32)         self.btn_close.setStyleSheet("color:#fff; background:transparent; font-size:20px; border:none;")         layout.addWidget(self.btn_min)         layout.addWidget(self.btn_close)         self.btn_min.clicked.connect(self.on_min)         self.btn_close.clicked.connect(self.on_close)       def on_min(self):         self.window().showMinimized()       def on_close(self):         self.window().close()       # 支持拖动窗口     def mousePressEvent(self, event):         if event.button() == Qt.LeftButton:             self._drag_pos = event.globalPos() - self.window().frameGeometry().topLeft()             event.accept()       def mouseMoveEvent(self, event):         if event.buttons() == Qt.LeftButton:             self.window().move(event.globalPos() - self._drag_pos)             event.accept()       def paintEvent(self, event):         super().paintEvent(event)         painter = QPainter(self)         painter.setRenderHint(QPainter.Antialiasing)         pen = QPen(QColor(17, 17, 17), 2)         painter.setPen(pen)         y = self.height() + 4  # 向下移5像素         painter.drawLine(10, y, self.width() - 10, y)   class MP3Player(QWidget):     def __init__(self):         super().__init__()         self.setWindowFlags(Qt.FramelessWindowHint)         self.setAttribute(Qt.WA_TranslucentBackground)         self.song_list = []  # 歌曲文件路径列表         self.current_index = -1  # 当前播放索引         self.player = QMediaPlayer()         self.vlc_player = vlc.MediaPlayer()         self.timer = QTimer(self)         self.timer.setInterval(500)         self.timer.timeout.connect(self.update_progress)         self.slider_is_pressed = False         self.loop_mode = False  # False: 顺序播放, True: 随机播放         self.shuffle_mode = False  # False: 顺序播放, True: 随机播放         self.default_lyric_text = "深埋生命血脉相连\n用丝绸去润泽你的肌肤"         self.floating_lyric = FloatingLyricWindow()         self.floating_lyric_visible = False         self.is_muted = False         self.btn_mute = QPushButton("&#128266;")         self.btn_mute.setFixedSize(48, 48)         self.btn_mute.setStyleSheet("font-size: 24px; background: #333; color: #fff; border-radius: 24px; font-weight: bold;")         self.btn_mute.clicked.connect(self.toggle_mute)         self.initUI()         self.load_last_playlist()       def initUI(self):         self.song_path = "test.mp3"  # 默认MP3文件路径         self.cover = CoverWidget(resource_path("fm.png"))         self.lyric = LyricLabel()         self.lyric.setDemoText(self.default_lyric_text)           first_row = QHBoxLayout()         first_row.addWidget(self.cover, 1)         first_row.addWidget(self.lyric, 2)           # 第二行         self.slider = QSlider(Qt.Horizontal)         self.slider.setRange(0, 100)         self.slider.setValue(0)         self.time_label_left = QLabel("00:00")         self.time_label_right = QLabel("05:27")         self.time_label_left.setStyleSheet("color: #aaa;")         self.time_label_right.setStyleSheet("color: #aaa;")           second_row = QHBoxLayout()         second_row.addWidget(self.time_label_left)         second_row.addWidget(self.slider, 1)         second_row.addWidget(self.time_label_right)           # 第三行         self.btn_prev = QPushButton("&#9198;")         self.btn_play = QPushButton("&#9654;")         self.btn_next = QPushButton("&#9197;")         self.btn_loop = QPushButton("&#128257;")         self.btn_stop = QPushButton("&#9209;")         self.btn_add_file = QPushButton("添加文件")         self.btn_add_dir = QPushButton("添加目录")         self.btn_save_list = QPushButton("保存列表")         self.btn_load_list = QPushButton("加载列表")         self.btn_mute = QPushButton("&#128266;")         self.btn_float_lyric = QPushButton("词")         button_style = """         QPushButton {             font-size: 24px;             background: #333;             color: #fff;             border-radius: 24px;             font-weight: bold;             border: none;         }         QPushButton:hover {             background: #09f;             color: #fff;         }         """         for btn in [self.btn_prev, self.btn_play, self.btn_next, self.btn_loop, self.btn_stop, self.btn_mute, self.btn_float_lyric]:             btn.setFixedSize(48, 48)             btn.setStyleSheet(button_style)         list_button_style = """         QPushButton {             font-size: 16px;             background: #555;             color: #fff;             border-radius: 8px;             padding: 6px 18px;             border: none;         }         QPushButton:hover {             background: #09f;             color: #fff;         }         """         self.btn_add_file.setFixedSize(100, 36)         self.btn_add_dir.setFixedSize(100, 36)         self.btn_save_list.setFixedSize(100, 36)         self.btn_load_list.setFixedSize(100, 36)         self.btn_add_file.setStyleSheet(list_button_style)         self.btn_add_dir.setStyleSheet(list_button_style)         self.btn_save_list.setStyleSheet(list_button_style)         self.btn_load_list.setStyleSheet(list_button_style)           self.btn_add_file.clicked.connect(self.open_file)         self.btn_add_dir.clicked.connect(self.open_dir)         self.btn_save_list.clicked.connect(self.save_playlist)         self.btn_load_list.clicked.connect(self.load_playlist)         self.btn_prev.clicked.connect(self.play_prev)         self.btn_next.clicked.connect(self.play_next)         self.btn_play.clicked.connect(self.play_selected)         self.btn_loop.clicked.connect(self.toggle_shuffle_mode)         self.btn_stop.clicked.connect(self.stop_play)         self.btn_mute.clicked.connect(self.toggle_mute)         self.btn_float_lyric.clicked.connect(self.toggle_floating_lyric)           third_row = QHBoxLayout()         third_row.setSpacing(8)  # 设置按钮间距         third_row.addStretch()         for btn in [self.btn_prev, self.btn_play, self.btn_next, self.btn_loop, self.btn_stop, self.btn_mute, self.btn_float_lyric]:             third_row.addWidget(btn)         third_row.addSpacing(20)         third_row.addWidget(self.btn_add_file)         third_row.addWidget(self.btn_add_dir)         third_row.addWidget(self.btn_save_list)         third_row.addWidget(self.btn_load_list)         third_row.addStretch()           # 新增：播放列表         self.list_widget = PlaylistWidget(self)         self.list_widget.itemDoubleClicked.connect(self.on_item_double_clicked)         self.list_widget.favSong.connect(self.append_to_fav)           # 总体布局         main_widget = QWidget(self)         main_widget.setObjectName("main_widget")         main_widget.setStyleSheet("""             #main_widget {                 background: #222;                 border-radius: 18px;             }         """)         main_layout = QVBoxLayout(main_widget)         main_layout.setContentsMargins(0, 0, 0, 0)         main_layout.setSpacing(0)           self.title_bar = CustomTitleBar(self)         main_layout.addWidget(self.title_bar)           content_layout = QVBoxLayout()         content_layout.addLayout(first_row, 3)         content_layout.addLayout(second_row, 1)         content_layout.addLayout(third_row, 1)         content_layout.addWidget(self.list_widget, 2)         content_layout.setContentsMargins(16, 0, 16, 16)         main_layout.addLayout(content_layout)           self.setLayout(QVBoxLayout())         self.layout().addWidget(main_widget)         self.layout().setContentsMargins(0, 0, 0, 0)         self.resize(1000, 700)           self.slider.sliderPressed.connect(self.on_slider_pressed)         self.slider.sliderReleased.connect(self.on_slider_released)         self.slider.sliderMoved.connect(self.on_slider_moved)           self.update_shuffle_button_style()           print(f"初始按钮文本: {self.btn_loop.text()}")           # 添加滚动条样式         scrollbar_style = """         QScrollBar:vertical {             background: #222;             width: 14px;             margin: 4px 2px 4px 2px;             border-radius: 7px;         }         QScrollBar::handle:vertical {             background: #444;             min-height: 40px;             border-radius: 7px;         }         QScrollBar::handle:vertical:hover {             background: #09f;         }         QScrollBar::add-line:vertical, QScrollBar::sub-line:vertical {             background: none;             height: 0px;         }         QScrollBar::add-page:vertical, QScrollBar::sub-page:vertical {             background: none;         }         QScrollBar:horizontal {             background: #222;             height: 14px;             margin: 2px 4px 2px 4px;             border-radius: 7px;         }         QScrollBar::handle:horizontal {             background: #444;             min-width: 40px;             border-radius: 7px;         }         QScrollBar::handle:horizontal:hover {             background: #09f;         }         QScrollBar::add-line:horizontal, QScrollBar::sub-line:horizontal {             background: none;             width: 0px;         }         QScrollBar::add-page:horizontal, QScrollBar::sub-page:horizontal {             background: none;         }         """         self.list_widget.verticalScrollBar().setStyleSheet(scrollbar_style)         self.list_widget.horizontalScrollBar().setStyleSheet(scrollbar_style)           self.load_last_playlist()       def open_file(self):         files, _ = QFileDialog.getOpenFileNames(self, "选择音频文件", "", "音频文件 (*.mp3 *.wav *.flac);;所有文件 (*)")         for file in files:             self.add_song(file)       def open_dir(self):         dir_path = QFileDialog.getExistingDirectory(self, "选择文件夹", "")         if dir_path:             for root, dirs, files in os.walk(dir_path):                 for fname in files:                     if fname.lower().endswith(('.mp3', '.wav', '.flac')):                         self.add_song(os.path.join(root, fname))       def add_song(self, file):         if file not in self.song_list:             self.song_list.append(file)             item = QListWidgetItem(os.path.basename(file))             item.setToolTip(file)             self.list_widget.addItem(item)             # 如果是第一首，自动选中             if len(self.song_list) == 1:                 self.list_widget.setCurrentRow(0)                 self.play_selected()       def on_item_double_clicked(self, item):         row = self.list_widget.row(item)         self.sync_song_list()         self.current_index = row         self.play_song_by_index(row)       def play_selected(self):         row = self.list_widget.currentRow()         self.sync_song_list()         if row >= 0:             self.current_index = row             state = self.vlc_player.get_state()             if state in (vlc.State.Playing, vlc.State.Buffering):                 self.vlc_player.pause()             elif state == vlc.State.Paused:                 self.vlc_player.play()  # 继续播放             elif state in (vlc.State.Stopped, vlc.State.Ended, vlc.State.NothingSpecial):                 self.play_song_by_index(row)       def play_song_by_index(self, idx):         if 0 <= idx < len(self.song_list):             self.current_index = idx             song_path = self.song_list[idx]             self.cover.setCover(song_path)             self.list_widget.setCurrentRow(idx)             self.vlc_player.stop()             self.vlc_player.set_media(vlc.Media(song_path))             self.vlc_player.play()             self.timer.start()             self.slider.setValue(0)             self.time_label_left.setText("00:00")             self.time_label_right.setText("--:--")             print(f"播放：{song_path}")             # 加载歌词             try:                 lrc = self.load_lrc(song_path) or self.load_embedded_lyric(song_path)                 if lrc:                     parsed = parse_lrc(lrc)                     if parsed:                         self.lyrics_parsed = parsed                         self.lyric.setLyrics(self.lyrics_parsed)                         self.floating_lyric.setLyrics(self.lyrics_parsed)  # 同步到浮动歌词                     else:                         self.lyric.setDemoText(self.default_lyric_text)                         self.floating_lyric.setLyrics([])                 else:                     self.lyric.setDemoText(self.default_lyric_text)                     self.floating_lyric.setLyrics([])             except Exception as e:                 self.lyric.setDemoText(self.default_lyric_text)                 self.floating_lyric.setLyrics([])       def play_prev(self):         if self.song_list:             if self.shuffle_mode:                 # 随机模式：随机选择一首（避免当前曲目）                 import random                 candidates = [i for i in range(len(self.song_list)) if i != self.current_index]                 if candidates:                     self.current_index = random.choice(candidates)                 else:                     self.current_index = self.current_index             else:                 # 顺序模式：播放上一首                 self.current_index = (self.current_index - 1) % len(self.song_list)             self.play_song_by_index(self.current_index)       def play_next(self):         if self.song_list:             if self.shuffle_mode:                 # 随机模式：随机选择一首（避免当前曲目）                 import random                 candidates = [i for i in range(len(self.song_list)) if i != self.current_index]                 if candidates:                     self.current_index = random.choice(candidates)                 else:                     self.current_index = self.current_index             else:                 # 顺序模式：播放下一首                 self.current_index = (self.current_index + 1) % len(self.song_list)             self.play_song_by_index(self.current_index)       def on_slider_pressed(self):         self.slider_is_pressed = True       def on_slider_released(self):         self.slider_is_pressed = False         total = self.vlc_player.get_length()         if total > 0:             pos = self.slider.value() / 100             self.vlc_player.set_time(int(total * pos))       def on_slider_moved(self, value):         total = self.vlc_player.get_length()         if total > 0:             cur_time = int(total * value / 100)             self.time_label_left.setText(self.ms_to_mmss(cur_time))       def update_progress(self):         if self.vlc_player.is_playing() and not self.slider_is_pressed:             total = self.vlc_player.get_length()             cur = self.vlc_player.get_time()             if total > 0:                 percent = int(cur / total * 100)                 self.slider.setValue(percent)                 self.time_label_left.setText(self.ms_to_mmss(cur))                 self.time_label_right.setText(self.ms_to_mmss(total))             else:                 self.slider.setValue(0)                 self.time_label_right.setText("--:--")         elif not self.vlc_player.is_playing():             if self.vlc_player.get_state() == vlc.State.Ended:                 if self.shuffle_mode:                     import random                     if self.song_list:                         # 避免重复播放当前曲目                         candidates = [i for i in range(len(self.song_list)) if i != self.current_index]                         if candidates:                             next_index = random.choice(candidates)                         else:                             next_index = self.current_index                         self.play_song_by_index(next_index)                 else:                     self.play_next()         # 图标联动         state = self.vlc_player.get_state()         if state in (vlc.State.Playing, vlc.State.Buffering):             self.btn_play.setText("&#9208;")         else:             self.btn_play.setText("&#9654;")           if hasattr(self, "lyric") and hasattr(self, "lyrics_parsed"):             cur = self.vlc_player.get_time() / 1000             self.lyric.setCurrentTime(cur)             self.floating_lyric.setCurrentTime(cur)  # 同步到浮动歌词       def ms_to_mmss(self, ms):         s = int(ms // 1000)         m = s // 60         s = s % 60         return f"{m:02d}:{s:02d}"       def save_playlist(self):         self.sync_song_list()         file_path, _ = QFileDialog.getSaveFileName(self, "保存播放列表", "", "播放列表文件 (*.m3u *.txt);;所有文件 (*)")         if file_path:             try:                 with open(file_path, "w", encoding="utf-8") as f:                     for song in self.song_list:                         f.write(song + "\n")             except Exception as e:                 print("保存失败：", e)       def load_playlist(self):         file_path, _ = QFileDialog.getOpenFileName(self, "加载播放列表", "", "播放列表文件 (*.m3u *.txt);;所有文件 (*)")         if file_path:             try:                 with open(file_path, "r", encoding="utf-8") as f:                     lines = [line.strip() for line in f if line.strip()]                 self.song_list.clear()                 self.list_widget.clear()                 for song in lines:                     if os.path.exists(song):                         self.song_list.append(song)                         item = QListWidgetItem(os.path.basename(song))                         item.setToolTip(song)                         self.list_widget.addItem(item)                 if self.song_list:                     self.list_widget.setCurrentRow(0)                     self.play_song_by_index(0)                 # 保存最后一次歌单路径                 with open("last_playlist.txt", "w", encoding="utf-8") as f:                     f.write(file_path)             except Exception as e:                 print("加载失败：", e)       def sync_song_list(self):         self.song_list = []         for i in range(self.list_widget.count()):             item = self.list_widget.item(i)             if item and item.toolTip():                 self.song_list.append(item.toolTip())       def toggle_shuffle_mode(self):         self.shuffle_mode = not self.shuffle_mode         self.update_shuffle_button_style()         print(f"切换后模式: {self.shuffle_mode}, 按钮文本: {self.btn_loop.text()}")       def stop_play(self):         self.vlc_player.stop()         self.timer.stop()         self.slider.setValue(0)         self.time_label_left.setText("00:00")         self.time_label_right.setText("--:--")         self.lyric.setDemoText(self.default_lyric_text)         self.append_to_fav(self.song_list[self.current_index])       def update_shuffle_button_style(self):         if self.shuffle_mode:             self.btn_loop.setText("&#128256;")         else:             self.btn_loop.setText("&#128257;")         self.btn_loop.update()  # 强制刷新按钮       def load_lrc(self, song_path):         lrc_path = os.path.splitext(song_path)[0] + ".lrc"         if os.path.exists(lrc_path):             with open(lrc_path, encoding="utf-8") as f:                 return f.read()         return None       def load_embedded_lyric(self, song_path):         try:             audio = MP3(song_path, ID3=ID3)             for tag in audio.tags.values():                 if tag.FrameID == "USLT":                     return tag.text         except Exception:             pass         return None       def toggle_floating_lyric(self):         if self.floating_lyric_visible:             self.floating_lyric.hide()             self.floating_lyric_visible = False             self.btn_float_lyric.setStyleSheet(                 "font-size: 24px; background: #333; color: #fff; border-radius: 24px; font-weight: bold;"             )         else:             self.floating_lyric.show()             self.floating_lyric_visible = True             self.btn_float_lyric.setStyleSheet(                 "font-size: 24px; background: #09f; color: #fff; border-radius: 24px; font-weight: bold;"             )       def toggle_mute(self):         self.is_muted = not self.is_muted         self.vlc_player.audio_set_mute(self.is_muted)         if self.is_muted:             self.btn_mute.setText("&#128263;")             self.btn_mute.setStyleSheet("font-size: 24px; background: #09f; color: #fff; border-radius: 24px; font-weight: bold;")         else:             self.btn_mute.setText("&#128266;")             self.btn_mute.setStyleSheet("font-size: 24px; background: #333; color: #fff; border-radius: 24px; font-weight: bold;")       def append_to_fav(self, song):         fav_path = os.path.abspath("收藏歌单.m3u")         try:             need_header = not os.path.exists(fav_path)             if os.path.exists(fav_path):                 with open(fav_path, "r", encoding="utf-8") as f:                     lines = [line.strip() for line in f if line.strip()]                 if song in lines:                     return             with open(fav_path, "a", encoding="utf-8") as f:                 if need_header:                     f.write("#EXTM3U\n")                 f.write(song + "\n")             print(f"已收藏到: {fav_path}")  # 调试用         except Exception as e:             print("收藏失败：", e)       def load_last_playlist(self):         try:             if os.path.exists("last_playlist.txt"):                 with open("last_playlist.txt", "r", encoding="utf-8") as f:                     file_path = f.read().strip()                 if file_path and os.path.exists(file_path):                     with open(file_path, "r", encoding="utf-8") as f:                         lines = [line.strip() for line in f if line.strip()]                     self.song_list.clear()                     self.list_widget.clear()                     for song in lines:                         if os.path.exists(song):                             self.song_list.append(song)                             item = QListWidgetItem(os.path.basename(song))                             item.setToolTip(song)                             self.list_widget.addItem(item)                     if self.song_list:                         self.list_widget.setCurrentRow(0)                         self.play_song_by_index(0)         except Exception as e:             print("自动加载上次歌单失败：", e)   def parse_lrc(lrc_text):     pattern = re.compile(r"\[(\d+):(\d+)(?:\.(\d+))?\](.*)")     result = []     for line in lrc_text.splitlines():         m = pattern.match(line)         if m:             minute = int(m.group(1))             second = int(m.group(2))             ms = int(m.group(3) or 0)             time = minute * 60 + second + ms / 100 if ms else minute * 60 + second             text = m.group(4).strip()             result.append((time, text))     result.sort()     return result   if __name__ == "__main__":     app = QApplication(sys.argv)     player = MP3Player()     player.show()     print("当前工作目录：", os.getcwd())     sys.exit(app.exec_())

ciocoinwnnw

楼主，真是厉害！短短时间内就搞出一个这么好看的音乐播放器，而且功能还这么强大。黑胶唱片封面和浮动歌词特别有感觉，完全提升了听歌体验。用GPT-4.1写的代码也让我很感慨AI的发展，居然能帮助开发出这么复杂的应用。

liuyang207

下载提供最新的编译版本了，界面美化了一下，感觉差不多了。
动态的唱针移动，光影流动的背景等等。
https://www.alipan.com/s/w2eqoL2fZbw

liutao0474

感谢楼主分享

zqfbz

程序员要下岗了！！！

qsxls

这个好，可以玩还可以学习。谢谢楼主分享

ailiwude

谢谢谢谢谢谢

xk1539287520

大佬能写个wince使用的吗？

Open

AI增加了便利性

shimeng0624

AI带的便利是有好有坏呀，期待有更大的突破。

nur11111

zqfbz 发表于 2025-4-30 16:31
程序员要下岗了！！！

确实，大厂程序员应该裁员90%，AI上就完事了

yy964140711

又有一波程序员要下岗了