Python字符串字母大小写变换
说明:
字符串就是一系列字符,在Python中用引号括起来的都是字符串,引号可以是单引号,也可以是双引号,比如:“This is a book.” ‘This is an apple.’
接下来简单说明下关于字符串大小写的变换。
操作:
- casefold() 所有字母小写
- lower() 所有字母小写
- upper() 所有字母大写
- capitalize() 所有字母小写
- title() 所有首字母大写,其余字母小写
- swapcase() 大小写字母替换
这几个方法都是生成新的字符串,不对原字符串内容进行修改。
'''
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'''
demo = 'tHis iS a GOod boOK.'
print(demo.casefold())
print(demo.lower())
print(demo.upper())
print(demo.capitalize())
print(demo.title())
print(demo.swapcase())
输出:
this is a good book.
this is a good book.
THIS IS A GOOD BOOK.
This is a good book.
This Is A Good Book.
ThIS Is A goOD BOok.
本文来自博客园,作者:I'm_江河湖海,转载请注明原文链接:https://www.cnblogs.com/jhhh/p/16761104.html