Person类

题目

设计一个 Person 类，成员包括：姓名、性别、年龄。需要实现的功能 (成员函数)：输入、输出、修改成员，根据有关信息初始化对象。main() 函数先输出把对象初始化为缺省值的结果、再输出修改各成员的结果、再输出经输入函数修改各成员的结果、最后设计一个比较两人年龄的函数，并在 main() 函数中测试之。

相关阅读

相关阅读

完整代码

#include<bits/stdc++.h>
#define Pi 3.14;
using namespace std;

class Person{
    string name;
    int sex; //1代表男, 0代表女
    int age;
public:
    Person(){
        this->name = "无名氏";
        this->sex = -1;
        this->age = -1;
    }
    void input(string name, int sex, int age){
        this->name = name;
        this->sex = sex;
        this->age = age;
    }
    void output(){
        cout << "姓名: " << name << endl;
        if (sex == 1)
            cout << "性别: 男" << endl;
        else if (sex == 0)
            cout << "性别: 女" << endl;
        else
            cout << "性别: 未知" << endl;
        if (age >= 0)
            cout << "年龄: " << age << endl;
        else
            cout << "年龄: 未知" << endl;
    }
    void modifyName(string name){
        this->name = name;
    }
    void modifySex(int sex){
        this->sex = sex;
    }
    void modifyAge(int age){
        this->age = age;
    }
    void compareAge(Person other){
        if (age > other.age)
            cout << name << "比" << other.name << "大" << endl;
        else if (age == other.age)
            cout << name << "和" << other.name << "一样大" << endl;
        else
            cout << name << "比" << other.name << "小" << endl;
    }
};
int main(){
    Person person1, person2;
    cout << "初始化对象为缺省值的结果" << endl;
    person1.output();

    person1.modifyName("小明");
    person1.modifySex(1);
    person1.modifyAge(18);
    cout << "修改各成员的结果" << endl;
    person1.output();

    person1.input("小红", 0, 20);
    cout << "输入函数修改各成员的结果" << endl;
    person1.output();

    person2.input("小王", 1, 22);
    person1.compareAge(person2);
}