例子1.1p2

//输出一行字符

//;输出一行字符
#include <iostream>
using namespace std;

int main()
{
    cout << "This is a C++ program.\n";
    return 0;
}

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例子1.2p3

//

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

例子1.3p4

//;求输入的两者最大数//;author
#include<iostream>
using namespace std;
int main()
{
    int a;
    int b;
    int max;
    cin >> a >> b;
    max = a;
    if (a < b)
        max = b;
    cout << "max=" << max << endl;
    return 0;

}

例子1.4p5

//;带类的C++程序
#include<iostream>
using namespace std;
class Student
{
private:
    int num;
    int score;
public:
    void setdata()
    {
        cin >> num >> score;
    }
    void display()
    {
        cout << "num=" << num << endl;
        cout << "score" << score << endl; 

    }
};
Student stud1, stud2;
int main()
{
    stud1.setdata();
    stud1.display();
    stud2.setdata();
    stud2.display();
    return 0;
}

例子1.5p

//;实现cin与cout的数据输入输出功能
#include <iostream>
using namespace std;

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