学步园

#include <iostream>
#include "ctime"
using namespace std;
 
class Singer{
public:
    Singer(int num,string Name);
    string name;
    int number;
    int counter;
    int grade;
};
 
Singer::Singer(int num,string Name)
{
    number=num;
    name=Name;
    counter++;
    grade=(float)((8000+rand()%2001)/100);
}
 
int main(){
    srand((int)time(NULL));
    Singer a(1,"Tom");
    Singer b(2,"David");
    Singer c(3,"Mike");
    cout << a.grade << endl;
    cout << b.grade << endl;
    cout << c.grade << endl;
 
    return 0;
}

srand((int)time(NULL));//放入主函数中，埋下随机种子，防止每次出现一样的随机数