c4-3.cpp

这是和谭浩强的《c++程序设计》对应的教材例题chap4的程序

#include <iostream>
using namespace std;
int main()
{float add(float,float);
 float a,b,c;
 cout<<"please enter a,b:";
 cin>>a>>b;
 c=add(a,b);
 cout<<"sum="<<c<<endl;
 return 0;
}

float add(float x,float y)
{float z;
 z=x+y;
 return (z);
}