老师与学生
Description
定义Person类，
1.有一个int类型属性age和1个char类型属性sex，分别为年龄和姓名。
2.构造函数和析构函数，输出如样例所示的信息。
定义Student类，是Person类的子类：
1.有一个int类型属性，是学生所在的班级号。
2.构造函数与析构函数，输出如样例所示的信息。
定义Teacher类，是Person类的子类：
1.有一个int类型属性，表示老师的工资。
2.构造函数与析构函数，输出如样例所示的信息。
Input
输入有多行，每行是一个测试用例。每行的第1个是一个正整数，是年龄；第2个是一个字符，表示性别；第3个是一个字符t或s，表示老师或学生；第4个是一个正整数，表示班号（对于学生）或工资（对于老师）。
Output
见样例。
Sample Input
18 f s 1
35 m t 8001
Sample Output
Person age = 18, sex = f is created.
Student of class 1 is created.
Student of class 1 is erased.
Person age = 18, sex = f is erased.
Person age = 35, sex = m is created.
Teacher with salary 8001 is created.
Teacher with salary 8001 is erased.
Person age = 35, sex = m is erased.
题目给定代码
int main()
{
Person *p;
int age, par;
char sex, t;
while (cin>>age>>sex>>t>>par)
{
if (t == 's')
{
p = new Student(age, sex, par);
}
else
{
p = new Teacher(age, sex, par);
}
delete p;
}
}
code:
#include<iostream>
using namespace std;
class Person{
protected:
int age;
char sex;
public:
Person(int a,char s){
age=a;
sex=s;
cout<<"Person age = "<<age<<", sex = "<<sex<<" is created."<<endl;
}
virtual ~Person(){
cout<<"Person age = "<<age<<", sex = "<<sex<<" is erased."<<endl;
}
};
class Student:public Person{
int par;
public:
Student(int a,char s,int p):Person(a,s){
par=p;
cout<<"Student of class "<<par<<" is created."<<endl;
}
~Student(){
cout<<"Student of class "<<par<<" is erased."<<endl;
}
};
class Teacher:public Person{
int salary;
public:
Teacher(int a,char s,int sa):Person(a,s){
salary=sa;
cout<<"Teacher with salary "<<salary<<" is created."<<endl;
}
~Teacher(){
cout<<"Teacher with salary "<<salary<<" is erased."<<endl;
}
};
int main()
{
Person *p;
int age, par;
char sex, t;
while (cin>>age>>sex>>t>>par)
{
if (t == 's')
{
p = new Student(age, sex, par);
}
else
{
p = new Teacher(age, sex, par);
}
delete p;
}
}