1. 修改编码格式

2. 文件的相关操作

2.1 with语句

2.2 os模块的常用函数

2.3 列出指定目录下的所有文件的案例

import os
mydir=os.getcwd()
mydir_list=os.listdir(mydir)
for filename in mydir_list:
    if filename.endswith('.py'):
        print(filename)

2.4 递归遍历所有文件

import os
import os.path
mydir=os.getcwd()
list_files=os.walk(mydir)
for dirpath,dirname,filename in list_files:
    '''print(dirpath)
    print(dirname)
    print(filename)
    print('...........................................')'''
    for dir in dirname:
        print(os.path.join(dirpath,dir))

    for file in filename:
        print(os.path.join(dirpath,file))
    print('..................................................')