C++中有关函数类型int,void和return的问题
以下几种形式有和区别,怎么体现出来?
I.#include<iostream.h>
int main()
{
int a=1,b=2,c;
c=a+b;
cout<<"c=a+b="<<c;
return 0;
}
II.#include<iostream.h>
int main()
{
int a=1,b=2,c;
c=a+b;
cout<<"c=a+b="<<c;
return 1;
}
III.#include<iostream.h>
void main()
{
int a=1,b=2,c;
c=a+b;
cout<<"c=a+b="<<c;
return;
}
VI.#include<iostream.h>
void main()
{
int a=1,b=2,c;
c=a+b;
cout<<"c=a+b="<<c;
}