定义学生类，含有学生姓名、学号、成绩、学生数、学生累加成绩和平均成绩，显示各项内容。 输入输出说明： 输出： name is liming number is 070201 score is 90 count is 1 sum is 90 ave is 90 name is zhanghao number is 070202 score is 80 count is 2 sum is 170 ave is 85

好的，这是一个C++编程题，需要你编写代码来实现要求的功能。下面是代码参考：

#include <iostream>
#include <string>
using namespace std;

class Student {
private:
    string name;
    string number;
    int score;
    static int count;
    static int sum;
public:
    Student(string n, string num, int s) {
        name = n;
        number = num;
        score = s;
        count++;
        sum += s;
    }
    void output() {
        cout << "name is " << name << " number is " << number << " score is " << score << " count is " << count << " sum is " << sum << " ave is " << sum / count << endl;
    }
};

int Student::count = 0;
int Student::sum = 0;

int main() {
    Student s1("liming", "070201", 90);
    s1.output();
    Student s2("zhanghao", "070202", 80);
    s2.output();
    return 0;
}

输出结果：

name is liming number is 070201 score is 90 count is 1 sum is 90 ave is 90
name is zhanghao number is 070202 score is 80 count is 2 sum is 170 ave is 85

说明：

- Student类定义了构造函数和output成员函数，用于初始化对象和输出学生信息。
- 在主函数中，通过调用构造函数创建两个Student对象s1和s2，并传入姓名、学号和成绩。
- 每次创建对象时，count计数器加1，sum成绩累加器加上该对象的成绩，用于计算平均成绩。
- 最后，通过调用每个对象的output函数输出学生信息，包括姓名、学号、成绩、学生数、学生累加成绩和平均成绩。