python 删除文件某一行

- 日理万妓 2021-09-02 04:48 632阅读 0赞

文件内容：

  1. Yesterday when I was young
  2. 昨日当我年少轻狂
  3. The tasting of life was sweet
  4. 生命的滋味是甜的
  5. As rain upon my tongue
  6. tasting
  7. I lived by night and shunned the naked light of day
  8. tasting123
  9. And only now I see how the time ran away
  10. tasting
  12. tasting

思路：打开文件后 一行一行写入 需要删除的行 使用continue跳过 不写入

将文本中的 tasting123删除　代码如下：

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

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