1.S.isdecimal() -> bool Return True if there are only decimal characters in S, False otherwise. 字符串如果是十进制,返回True. 2.S.isdigit() -> bool Return True if all characters in S are digits and there is at least one character in S, False otherwise.3.…
1. S.partition(sep) -> (head, sep, tail) Search for the separator sep in S, and return the part before it, the separator itself, and the part after it. If the separator is not found, return S and two empty strings. 分割作用,参数为分割字符,分为三部分,(参数前,参数,参数后);如果参…
maketrans 和 translate的用法(配合使用) 下面是python的英文用法解释 maketrans(x, y=None, z=None, /) Return a translation table usable for str.translate(). If there is only one argument, it must be a dictionary mapping Unicode ordinals (integers) or characters to Unicode…
Python3 字符串 Python字符串运算符 + 字符串连接 a + b 输出结果: HelloPython * 重复输出字符串 a*2 输出结果:HelloHello [] 通过索引获取字符串中字符 a[1] 输出结果 e [ : ] 截取字符串中的一部分,取到截止点的前一个 a[1:4] 输出结果 ell in 成员运算符 - 如果字符串中包含给定的字符返回 True H in a 输出结果 1 not in 成员运算符 - 如果字符串中不包含给定的字符返回 True M not in…