题解 | #构造函数#

参数列表挺好用的~

#include <iostream>
#include <string>

using namespace std;

// Person类
class Person {
  public:
    string name;    // 姓名
    int age;    // 年龄

    Person(string _name = "", int _age = 0): name(_name), age(_age) {}


    void showPerson() {
        cout << name << " " << age << endl;
    }
};

int main() {

    string name;
    int age;

    cin >> name;
    cin >> age;

    Person p(name, age);
    p.showPerson();

    return 0;
}