重载函数简单例子

#include<iostream.h>
int add(int a,int b)
{
return a+b;

}
double add(double c,double d)
{
return d+c;
}
int main()
{
int r,e;
double t,y;
cin>>r>>e>>t>>y;
cout<<add(r,e)<<endl;
cout<<add(t,y)<<endl;
}
附上运行截图