就是找到硬盘中所有的MP3文件和wma文件，再随机打开其中的一个。

import os,random
disk=[‘D‘,‘E‘,‘F‘,‘G‘,‘H‘] 
def search_file(filename,search_path,pathsep=os.pathsep):
    for path in search_path.split(pathsep):
        candidate = os.path.join(path,filename)
        if os.path.isfile(candidate):
            return os.path.abspath(candidate)
def random_play():
    music=[]
    found=False
    for i in range(0,5):
        for dirpath, dirnames, filenames in os.walk(disk[i]+‘:/‘):
            for filename in filenames:
                if os.path.splitext(filename)[1] == ‘.mp3‘:
                    filepath = os.path.join(dirpath, filename)
                    if os.path.getsize(filepath)>1048576:#这里是为了防止打开一些非音乐音频，比如游戏配音
                        music.append(filepath)
                        found=True
    if not found:
        for dirpath, dirnames, filenames in os.walk(‘C:/Users‘):
            for filename in filenames:
                if os.path.splitext(filename)[1] == ‘.mp3‘:
                    filepath = os.path.join(dirpath, filename)
                    if os.path.getsize(filepath)>1048576:
                        music.append(filepath)
                        found=True
    if not found:
        for i in range(0,5):
            for dirpath, dirnames, filenames in os.walk(disk[i]+‘:/‘):
                for filename in filenames:
                    if os.path.splitext(filename)[1] == ‘.wma‘:
                        filepath = os.path.join(dirpath, filename)
                        if os.path.getsize(filepath)>1048576:
                            music.append(filepath)
                            found=True
    if not found:
        for dirpath, dirnames, filenames in os.walk(‘C:/Users‘):
            for filename in filenames:
                if os.path.splitext(filename)[1] == ‘.wma‘:
                    filepath = os.path.join(dirpath, filename)
                    if os.path.getsize(filepath)>1048576:
                        music.append(filepath)
                        found=True
    random_music=random.choice(music)
    os.startfile(random_music)
    if not found:
        print‘没有找到音频文件‘
if __name__==‘__main__‘:
    random_play()