c++ - Visual Studio 奇怪的行为

Question

我在visual studio 2010中写了一段c++的代码作为我大三的例子

#include <iostream>
using namespace std;
int main()
{
    cout<< "How are Your";
}

如果有人能为我解释一下，我不明白这个程序是如何在没有返回语句的情况下构建和执行的？

Answer 1

main函数中没有return语句，默认为return 0;

§ 3.6.1

A return statement in main has the effect of leaving the main function (destroying any objects with automatic storage duration) and calling std::exit with the return value as the argument. If control reaches the end of main without encountering a return statement, the effect is that of executing return 0;