python--文件操作删除某行

Posted 2020-09-23

方法一：

 

import shutil
with open(‘/path/to/file‘, ‘r‘) as f:
    with open(‘/path/to/file.new‘, ‘w‘) as g:
        for line in f.readlines():
            if ‘/local/server‘ not in line:             
                g.write(line)
shutil.move(‘/path/to/file.new‘, ‘/path/to/file‘)

 

方法二：

 

将文本中的 tasting123删除　

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with open("fileread.txt","r",encoding="utf-8") as f:     lines = f.readlines()     #print(lines) with open("fileread.txt","w",encoding="utf-8") as f_w:     for line in lines:         if "tasting123" in line:             continue         f_w.write(line)