return不仅跳出了作用域,是可以直接结束函数的
#include <iostream>
#include <cstdlib>
int main()
{
int a = 1;
{
if(a == 1){
std::cout << "Hello, 1" << std::endl;
return true;
}
std::cout << "Hello, 2" << std::endl;
}
std::cout << "Hello, 3" << std::endl;
}