""" return False def isalpha(self): # real signature unknown; restored from __doc__ """ 至少一个字符,且都是字母才返回True S.isalpha() -> bool Return True if all characters in S are alphabetic and there is at least one character in S, False otherwise. """ return False def is...
英文:Methods starting with the characters i s, will return the Boolean value of either True or False. isalnum() checks that EVERY character in the text is an alphanumeric characterisalpha() checks that EVERY character in the text is an alphabetic character isdigit() checks that EVERY character...
isalpha() -> bool 134 135 Return True if all characters in S are alphabetic 136 and there is at least one character in S, False otherwise. 137 """ 138 return False 139 140 def isdigit(self): 141 """ 是否是数字 """ 142 """ 143 S.isdigit() -> bool 144 145 Return True if ...
) | S.isalnum() -> bool | | Return True if all characters in S are alphanumeric | and there is at least one character in S, False otherwise. | | isalpha(...) | S.isalpha() -> bool | | Return True if all characters in S are alphabetic | and there is at least one ...
| Return True if all characters in S are alphabetic | and there is at least one character in S, False otherwise. | | isdigit(...) | S.isdigit() -> bool | '''判断字符串是否全是由数字组成,返回布尔值''' | Return True if all characters in S are digits ...
isalpha:判断字符串中是否只包含字母 ``` def isalpha(self): # real signature unknown; restored from __doc__ """ S.isalpha() -> bool Return True if all characters in S are alphabetic and there is at least one character in S, False otherwise. """ return False ``` 用法实例 ``` >>...
Return True if all characters in S are alphabetic and there is at least one character in S, False otherwise. 示例: >>> ''.isalpha() False >>> 'ab'.isalpha() True >>> 'ab12'.isalpha() False >>> 'ab你好'.isalpha() True
| ReturnTrueifallcharactersinS are alphabetic |andthereisat least one characterinS,Falseotherwise. | | isdigit(...) | S.isdigit()->bool | | ReturnTrueifallcharactersinS are digits |andthereisat least one characterinS,Falseotherwise.
""" def capitalize(self, *args, **kwargs): # real signature unknown """ Return a capitalized version of the string. More specifically, make the first character have upper case and the rest lower case. """ pass def casefold(self, *args, **kwargs): # real signature unknown """ Retu...
20、st 1 character and all characters are alphabetic and False otherwisestring.isdecimal()b,c,d Returns TRue if string contains only decimal digits and False otherwisestring.isdigit()b,c Returns true if string contains only digits and False otherwisestring.islower()b,c Returns true if string ...