weixin_54966200的博客

#include <bits/stdc++.h>using namespace std;class String{ protected: char *s; public: String(){s=NULL;}//定义默认构造函数 String(char *str);//声明构造函数 String(const String &stri);//拷贝构造函数 ~String();//析构函数 String operator=(String &s.

1.基类指针数组？？#include <bits/stdc++.h>#define PI 3.1415926using namespace std;class Shape{ public: Shape(){} virtual float girth();//基类求周长函数 virtual float area();//基类求面积函数 virtual void display();//基类输出虚函数 ~Shape(){} };class Circle.

#include <bits/stdc++.h>using namespace std;class Teacher_Cadre;//提前对类进行声明class Teacher{ string name,sex,address,number,title; int age; public: Teacher(string na,int ag,string se,string ti,string add,string nu); void.

#include <bits/stdc++.h>using namespace std;class Data{ int year,month,day; public: Data(int y,int m,int d) //定义构造函数 { year = y; month = m; day = d; } Data(co...