#include
using namespace std;
void main()
{
int m,n;
cout<<"input two number:"<
cout<<"和:"<
int main()
{
int a,b;
cout<<"请输入a和b的值\n";
cin>>a'
cin>>b;
cout<<"\na + b = "< <<"\na * b = "< return 0;
}
int main()
{
int a,b;
cout<<"请输入a和b的值\n";
cin>>a'
cin>>b;
cout<<"\na + b = "< return 0;
}