Python 打印某一目录下所有文件名

import osdef printName(dir):    list_dir = os.listdir(dir)    for name in list_dir:        if os.path.isdir(dir+'/'+name):            printName(dir+'/'+name)        elif os.path.isfile(dir+'/'+name):            print name        else:            passif __name__ == '__main__':    dir = os.getcwd()    dir = '/'.join(dir.split('/')[:-1])    printName(dir)