python 之批量替换文件中文本后缀

代码示例如下：

 1 #!/usr/local/bin python
 2 import os
 3 def swapextensions(dir, before, after):
 4     if before[:1] != '.':
 5         before = '.'+before
 6     thelen = -len(before)
 7     if after[:1] != '.':
 8         after = '.'+after
 9     for path, subdir, files in os.walk(dir):
10         for oldfile in files:
11             if oldfile[thelen:] == before:
12                 oldfile = os.path.join(path, oldfile)
13                 newfile = oldfile[:thelen] + after
14                 os.rename(oldfile, newfile)
15 
16 if __name__ == '__main__':
17     import sys
18     if len(sys.argv) != 4:
19         print "Usage: swapext rootdir before after"
20         sys.exit(100)
21     swapextensions(sys.argv[1], sys.argv[2], sys.argv[3])

可在命令行模式下根据参数进行需要更改替换的后缀！

　　与大家共勉！

python 之 批量替换文件中文本后缀

python 之批量替换文件中文本后缀