两个主要功能 [英] Two main functions

问题描述

我们可以在C ++程序中有两个 main（）函数？

Can we have two main() functions in a C++ program?

推荐答案

标准在3.6.1中明确说明：

The standard explicitly says in 3.6.1:

程序应包含一个名为main的全局函数，的程序。 [...]

A program shall contain a global function called main, which is the designated start of the program. [...] This function shall not be overloaded.

这个函数不能重载。 main 函数在程序的全局范围内。其他范围中也称为 main 的函数不受此影响，可以有任意数量的函数。

So there can one only be one one main function in the global scope in a program. Functions in other scopes that are also called main are not affected by this, there can be any number of them.

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