第一章 C++初步知识

//p5
//输出字符串"This is a C++ program."
#include <iostream>
using namespace std;
int main()
{
cout<<"This is a C++ program."<<"\n";
return 0;
}

//p6
//求两数之和
#include <iostream>
using namespace std;
int main()
{
int a,b,sum;
cin>>a>>b;
sum=a+b;
cout<<"a+b="<<sum<<endl;
return 0;
}

//p7
//求两个数的最大者
#include <iostream>
using namespace std;
int max(int x,int y)
{
int z;
if(x>y)
z=x;
else
z=y;
return z;
}
int main()
{
int a,b,m;
cin>>a>>b;
m=max(a,b);
cout<<"max="<<m<<"\n";
return 0;
}

//p9
//包含类的C++程序
#include <iostream>
using namespace std;
class Student
{
private:
int num;
int score;
public:
void setdata()
{
cin>>num;
cin>>score;
}
void display()
{
cout<<"num="<<num<<endl;
cout<<"score="<<score<<endl;
};
};
Student stud1,stud2;
int main()
{
stud1.setdata();
stud2.setdata();
stud1.display();
stud2.display();
return 0;
}