代码如下: # 打印第一个字符print("第一个字符是:",first_character)# 这行代码输出: 第一个字符是: H 1. 2. 3. 完整示例 将这三部分组合在一起,你就能得到一个完整的程序,如下所示: # 创建一个字符串变量my_string="Hello, World!"# 获取字符串的第一个字符first_character=my_string[0]# 打印第...
# 输出字符串的第一个字符first_character=string[0]print(first_character) 1. 2. 3. 在上述代码中,我们使用方括号和索引0来访问和提取字符串的第一个字符,并将其赋值给变量first_character。然后,使用print函数将该字符输出到控制台。 4. 示例代码 下面是完整的示例代码: # 定义一个字符串string="Hello, W...
String1 = "{0:e}".format(188.996) print("nExponent representation of 188.996 is ") print(String1) # Rounding off Integers String1 = "{0:.2f}".format(1 / 6) print("none-sixth is : ") print(String1) # String alignment String1 = "|{:<10}|{:^10}|{:>10}|".format('Hello'...
A string is a decimal string if all characters in the string are decimal and there is at least one character in the string. """ pass def isdigit(self, *args, **kwargs): # real signature unknown """ Return True if the string is a digit st...
# A single quote string 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 ...
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" ...
#last character with the help of length of thestringprint('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。
| S.capitalize() - > string | | 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 ...
Return S centered in a string of length width. Padding is done using the specified fill character (default is a space)"""#width 指定字符串的长度,fillchar指定#返回S,以长度为宽度的字符串为中心。 填充为使用指定的填充字符完成(默认为空格)print(str2)#hello world!print(str2.center(20))#hello...
test="Python Programming"print("String: ",test)# First one character first_character=test[:1]print("First Character: ",first_character)# Last one character last_character=test[-1:]print("Last Character: ",last_character)# Everything except the first one character except_first=test[1:]print...