try catch 使用

#include<iostream>
using namespace std;
int min(int a,int b)
{
    if(a>b)
    throw a;
    return a;
}
int main()
{
    int a,b,c;
    try
    {
        c=min(3,2);
        cout<<c<<endl;
    }
    catch(int)
    {
        cout<<"error 1"<<endl;
    }
    return 0;
 }