os模块walk方法

1.os.walk

import os
for root, dirs, files in os.walk(top, topdown=False):
    for name in files:
        os.remove(os.path.join(root, name))
    for name in dirs:
        os.rmdir(os.path.join(root, name))
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2.remove # 删除文件

3.rmdir # 删除文件夹

4.removedirs(path) # 递归删除文件夹