函数解析——python学习第二次总结

.str 字符串类型

1.　　capitalize　　首字母大写

　　示例：

1 a = 'alex'
2 v = a.capitalize()
3 print(v)
# 输出
# Alex

 　　源码：

1     def capitalize(self, *args, **kwargs): # real signature unknown
2         """
3         Return a capitalized version of the string.
4         
5         More specifically, make the first character have upper case and the rest lower
6         case.
7         """

源码

2.　　casefold　　字符串对应字符变小

　　示例：

1 a = 'ALEx'
2 v = a.casefold()
3 print(v)
# 输出
# alex

　　源码：

1     def casefold(self, *args, **kwargs): # real signature unknown
2         """ Return a version of the string suitable for caseless comparisons. """

源码