这段代码是一个简单的Python计算器程序，它定义了四个基本的数学运算函数：加法(add)、减法(subtract)、乘法(multiply)和除法(divide)。然后，程序会提示用户输入两个数字，并让用户选择要执行的运算类型（1表示加法，2表示减法，3表示乘法，4表示除法）。根据用户的选择，程序将调用相应的运算函数并打印结果。如果用户输入的选择不是这四个选项之一，程序将打印“非法输入”。
什么意思
- 作者:China-Hubei-Wuhan
- 日期:2025年3月8日 08:57
- 浏览:16
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