这是自己写的python 。只是用调用了string自带的字母表。- import string
- lowercase=string.ascii_lowercase
- uppercase=string.ascii_uppercase
- f=open("a.txt","r")
- def l2u():
- txt=f.read()
- for r in range(0,26,1):
- txt=txt.replace(lowercase[r],uppercase[r])
- return(txt)
-
- def u2l():
- txt=f.read()
- for r in range(0,26,1):
- txt=txt.replace(uppercase[r],lowercase[r])
- return(txt)
复制代码
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