设计学生类Student，成员数据包括学号（int Id）、姓名（char name[9]）成绩（int score）。根据给定的main函数设计必要的成员函数。 main函数已给定，提交时只需要提交main函数外的代码部分。 #include<iostream> #include<cstring> using namespace std; //你提交的代码在这里 int main() { Student stu1; cout<<"Show object stu1:"; cout<<stu1.GetId()<<"-"<<stu1.GetName()<<"-"<<stu1.GetScore()<<endl; int no,s; char xm[9]; cin>>no>>xm>>s; Student stu2(no,xm,s); cout<<"Show object stu2:"; cout<<stu2.GetId()<<"-"<<stu2.GetName()<<"-"<<stu2.GetScore()<<endl; cin>>no>>xm>>s; cout<<"Reset and Show object stu1:"; stu1.Set(no,xm,s); stu1.Show(); cout<<"Reset and Show object stu2:"; stu2.Set(); stu2.Show(); return 0; } 输入 2行，每行3个数据。 第一个数据为学号，int类型，第2个数据为姓名，字符串类型，第3个数据为分数，int类型。 输出 按照样例输出格式输出。 输入样例 1 10001 zhangsan 98 10002 lisi 87 输出样例 1 Show object stu1:10000-NULL-0 Show object stu2:10001-zhangsan-98 Reset and Show object stu1:10002-lisi-87 Reset and Show object stu2:99999-NONAME-100

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

class Student {
private:
    int Id, score;
    char name[9];
public:
    Student(int id = 10000, const char* n = NULL, int s = 0);
    int GetId() const;
    const char* GetName() const;
    int GetScore() const;
    void Set(int id = 99999, const char* n = "NONAME", int s = 100);
    void Show() const;
};

Student::Student(int id, const char* n, int s) {
    Id = id;
    score = s;
    if (n != NULL) {
        strncpy(name, n, 8);
        name[8] = '\0';
    }
    else {
        strcpy(name, "NULL");
    }
}

int Student::GetId() const {
    return Id;
}

int Student::GetScore() const {
    return score;
}

const char* Student::GetName() const {
    return name;
}

void Student::Set(int id, const char* n, int s) {
    Id = id;
    score = s;
    if (n != NULL) {
        strncpy(name, n, 8);
        name[8] = '\0';
    }
    else {
        strcpy(name, "NULL");
    }
}

void Student::Show() const {
    cout << Id << "-" << name << "-" << score << endl;
}

int main() {
    Student stu1;
    cout << "Show object stu1:";
    stu1.Show();
    int no, s;
    char xm[9];
    cin >> no >> xm >> s;
    Student stu2(no, xm, s);
    cout << "Show object stu2:";
    stu2.Show();
    cin >> no >> xm >> s;
    cout << "Reset and Show object stu1:";
    stu1.Set(no, xm, s);
    stu1.Show();
    cout << "Reset and Show object stu2:";
    stu2.Set();
    stu2.Show();
    return 0;
}