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...
Return a copy of the string with its first character capitalized and the rest lowercased. 对于一个字符串, 第一个字符为大写, 其余为小写。 str.center(width[, fillchar]) Return centered in a string of length width. str.count(sub[, start[, end]]) Return the number of non-overlapping occu...
Return a capitalized version of the string. More specifically, make the first character have upper case and the rest lower case. """ pass 翻译:1.返回字符串一个大写版本 2.详细一点来说就是是每个字符串首字母大写,其余小写 View Code 3.upper def upper(self, *args, **kwargs): # real signat...
my_string = "programiz is Lit" print(my_string[0].upper() + my_string[1:]) Run Code Output Programiz is Lit In the above example, my_string[0] selects the first character and upper() converts it to uppercase. Likewise, my_string[1:] selects the remaining characters as they are...
str = 'Antarctica is really cold.' a = len(str) print('length of str ', a) #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 26str [a]的长度。str [-1]。
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...
In addition, we canaccess just a specific characteror aslice of charactersof a string. We might want to do this, for example, if we have a text that’s too long to display and we want to show just a portion of it. Or if we want to make an acronym by taking the first letter of...
可以使用 format()方法来格式化Python中的字符串,该方法是用于格式化字符串的功能非常强大的工具。String中的Format方法包含大括号{}作为占位符,可以根据位置或关键字保存参数以指定顺序。aM6少儿编程网-https://www.pxcodes.com String1 = "{} {} {}".format('Hello', 'to', 'Batman') print("Default order...
Strings can be indexed (subscripted), with the first character having index 0. There is no separate character type; a character is simply a string of size one:字符串可以被索引（下标），其中第一个字符具有索引0。没有单独的字符类型；字符只是字符串大小的字符串：>>> word = 'Python'>>> word[...