| Return a copy of the string S with only its first character | capitalized. | | center(...) | S.center(width[, fillchar]) - > string | | Return S centered in a string of length width. Padding is | done using the specified fill character (default is a space) | | count(......
capitalize() -> string Return a copy of the string S with only its first character capitalized. """ return "" def center(self, width, fillchar=None): """ 内容居中,width:总长度;fillchar:空白处填充内容,默认无 """ """ S.center(width[, fillchar]) -> string Return S centered in a...
at least one cased character in S, False otherwise."""#字符转中所有的字母都是小写的返回布尔值True,如果字符串S中至少包含一个非小写字母的,返回布尔值Falseprint(str2.islower())#Falseprint(str3.islower())#Falseprint(str4.islower())#True 2.4.4 字符串常用功能之center str2 ="hello world!"""...
A string is alpha-numeric if all characters in the string are alpha-numeric and there is at least one character in the string. """ pass def isalpha(self, *args, **kwargs): # real signature unknown """ Return True if the string is an alphab...
| Return a nice string representation of theobject. | If the argumentisa string, thereturnvalueisthe sameobject. | | Method resolution order: |str |basestring |object | | Methods defined here: | | __add__(...) | x.__add__(y) <==> x+y ...
ljust(width, fillchar=' ') method of builtins.str instance Return a left-justified string of length width. Padding is done using the specified fill character (default is a space). ''' s1 = "Example" # 使用ljust()函数 print(s1.ljust(11)) # Example ...
#last character with the help of length of the string print('str[a] ', str[a-1]) #last character with the help of indexing print('str[-1] ',str[-1]) 输出: str 26 str [a]的长度。 str [-1]。 字符串本质上是不可变的,这意味着一旦声明了字符串,就不能更改其中的任何字符。
字符串驻留机制是指Python解释器为了节省内存,会维护一个内部的小字符串对象池(也称为“intern pool”或“interned string cache”)。当创建新的字符串对象时,如果字符串内容满足驻留条件(通常是字符串较短且只包含ASCII字符),Python会首先检查这个字符串是否已经存在于驻留池中。如果存在,Python会返回池中已有对象的引...
字符串（String）1. 特点 String 是不可变的，它是序列 字符串是属于一种容器类型，扁平型容器，它...
single_quote = 'a' # This is an example of a character in other programming languages. It is a string in Python # Another single quote string another_single_quote = 'Programming teaches you patience.' # A double quote string double_quote = "aa" ...