Python base "day02": String 1

In Python, the string itself has a lot of operations, the character of the string, can not be modified

1, the definition of the string

#定义空字符串
>>> name= '
#定义非空字符串 >>> name= "Luoahong"
#通过下标访问 >>> name[1] ' u '
#不能修改字符串的值, otherwise error >>> name[2] = "3" Traceback (most recent call last):  File "<stdin>", line 1, in <modu Le>typeerror: ' str ' object does not support item assignment

Special reminder: If the string is modified, the memory address of the string is changed, so it cannot be modified, but for the list, it can be modified because the memory of the list is constant and can be modified directly above

>>> name= "Ahong luo" >>> name[1:4] ' hon ' >>> name[1:-1] ' Hong Lu ' >>> name[0:3] ' aho ' >>> Name[:3] ' aho ' >>> name[3:] ' ng Luo ' >>> name[0::2] ' Aoglo ' >>> name[::2] ' Aoglo '

　　

Python base "day02": String 1