/) Read a string from standard input. The trailing newline is stripped. The prompt string, if given, is printed to standard output without a trailing newline before reading input. If the user hits EOF (*nix: Ctrl-D, Windows: Ctrl-Z+Return), raise ...
代码采用循环结构,当用户输入错误时,不断提示用户重试。 defuser_login():users={"user1":"password1","user2":"password2","user3":"password3",}whileTrue:username=input("请输入用户名: ")password=input("请输入密码: ")# 验证用户输入ifusernameinusersandusers[username]==password:print("登录成功!
*input(prompt=None, /) Read a string from standard input. The trailing newline is stripped.The prompt string, if given, is printed to standard output without a trailing newline before reading input. If the user hits EOF (*nix: Ctrl-D, Windows: Ctrl-Z+Return), raise EOFError.On *nix...
2)输入 Python提供了一个input(),可以让用户输入字符串,并存放到一个变量里。比如输入用户的名字: #!/usr/bin/env python3**# coding=utf-8*name =input()print('hello,', name) 转义字符\可以转义很多字符,比如\n表示换行,\t表示制表符,字符\本身也要转义,所以\\表示的字符就是\ 四.Python基础 1.lis...
Read a string from standard input. The trailing newline is stripped. The prompt string, if given, is printed to standard output without a trailing newline before reading input. If the user hits EOF (*nix: Ctrl-D, Windows: Ctrl-Z+Return), raise EOFError. ...
input_date =None# assert input_date is the valid date entered by the user 这个整体循环实现了复合日期对象的高级验证。 给定年份和月份,我们实际上可以确定一个稍微更窄的天数范围。复杂之处在于月份不仅有不同数量的天数,从 28 到 31 不等,而且二月的天数还取决于年份的类型。
例如,我们可以创建 int to func 的字典。当 int 是待执行步骤的简写时,这就会派上用场。 store in dictionary mapping = { 0 : foo, 1 : bar } x = input() #get integer value from user mappingx #call the func returned by dictionary access发布于 2024-08-02 09:29・IP 属地江苏...
There are a bunch of fun methods for transforming our string text. Among those that are more important to understand to make real-world applications we can find thelower(),upper(), strip(), count()andjoin()methods. Thestrip()method is useful when dealing with user input as it gets rid...
num = 5 if num ==3: #判断num的值 print('boss') elif num ==2: print('user') elif num ==1: print('worker') 2. 循环语句 Python中没有do while循环。 循环类型 描述 while循环 在给定的判断条件为 true 时执行循环体,否则退出循环体。 for循环 重复执行语句 嵌套循环 你可以在while循环体中...
```# Python script to sort files in a directory by their extensionimport osfromshutil import movedef sort_files(directory_path):for filename in os.listdir(directory_path):if os.path.isfile(os.path.join(directory_path, filename...