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  • python自学第6天,文件修改,字符编码

    文件的修改:

    一般是把旧文件的内容改了,在写入到新的文件中去。

    file_old=open("test","r",encoding="utf-8")
    file_new=open("test.bak","w",encoding="utf-8")
    
    for line in file_old:
        if "快乐等我享受" in line:
            line=line.replace("快乐等我享受","快乐等HunterYi享受")
            print(line)
        file_new.write(line)
    file_old.close()
    file_new.close()
    

      

    with语句的用法。

    #!/usr/bin/env python
    #-*- coding:utf-8 -*-
    # Author:Hunter Yi
    
    
    with open("test","r",encoding="utf-8") as f ,
         open("test.bak","r",encoding="utf-8") as f2: #用with语句 可以同时打开多个文件,用完后自动关闭。
    
        for line in f:
            print(line)
    
        for line2 in f2:
            print(line2)  

    查看当前编码

    import sys
    print(sys.getdefaultencoding())

    编码转换
    s_utf8="你好"
    print(s_utf8.encode("utf-8"))
    utf8_gbk=s_utf8.encode("gbk")
    print(utf8_gbk)
    gbk_gb2312=utf8_gbk.decode("gbk").encode("utf-8")
    print(gbk_gb2312.decode("utf-8"))



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  • 原文地址:https://www.cnblogs.com/hunterYi/p/8757368.html
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