#include<iostream>
#include<string.h>
using namespace std;
class process
{
public:
virtual void print() = 0;
};
class person :public process
{
private:
string name;
string gender;
int age;
person(string n, string g, int a)
{
name = n;
gender = g;
age = a;
}
virtual void print()
{
cout << "姓名:" << name << "性别:" << gender << "年龄:" << age << endl;
}
};
class student :public person
{
public:
int id;
int score1;
int score2;
int score3;
person(int i, int s1, int s2, int s3)
{
id = i;
score1 = s1;
score2 = s2;
score3 = s3;
}
virtual void print()
{
cout << "学号:" << id << "语文成绩:" << score1 << "数学成绩:" << score2 << "英语成绩:" << score3 << endl;
}
};
int main()
{
person p("张三", "男", 20);
student s(19060102, 100, 99, 98);
process* pro1 = new person;
pro1->print();
process* pro2 = new student;
pro2->print();
system("pause");
return 0;
}
```!![图片说明](https://img-ask.csdn.net/upload/202005/25/1590388783_830563.png)
有没有大佬看一下这个怎么改
c++中string应该怎样用,应输入标识符是什么意思
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1条回答 默认 最新
- threenewbee 2020-05-25 14:26关注
class person(string n = 0,string g = 0,int a = 0) :
构造函数不能写在类定义上#include<iostream> #include<string> using namespace std; class process { public: virtual void print() = 0; }; class person: public process { private: string name; string gender; int age; public: person(string n = "默认名",string g = "男",int a = 0) { name = n; gender = g; age = a; } virtual void print() { cout << "姓名:" << name << "性别:" << gender << "年龄:" << age << endl; } }; class student :public person { private: int id; int score1; int score2; int score3; public: student(int i, int s1, int s2, int s3):person() { id = i; score1 = s1; score2 = s2; score3 = s3; } virtual void print() { cout << "学号:" << id << "语文成绩:" << score1 << "数学成绩:" << score2 << "英语成绩:" << score3 << endl; } }; int main() { person p("张三", "男", 20); student s(19060102, 100, 99, 98); process* pro1 = new person("张四", "男", 21); pro1->print(); process* pro2 = new student(19060103, 95, 80, 70); pro2->print(); }
姓名:张四性别:男年龄:21
学号:19060103语文成绩:95数学成绩:80英语成绩:70问题解决的话,请点采纳。
本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 2无用
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