circle类和table类派生roundtable类
不能通过指针为字符串赋值吧。
看不懂你写这个程序的意图,既然用的继承,何必roundtable类又声明继承过来的成员呢?
分析你的目的,可将程序写成:
#include <iostream>
#include <string>
using namespace std;
#define PAI 3.14
class roundtable
{
public:
void iniroundtable(double G,double B,string Y)
{
GaoDu=G;
BanJing=B;
YanSe=Y;
}
void display()
{
cout<<"Yuan Zhuo de GaoDu : "<<GaoDu<<endl;
cout<<"Yuan Zhuo de YanSe : "<<YanSe<<endl;
cout<<"Yuan Zhuo de MianJi : "<<PAI*BanJing*BanJing<<endl;
}
protected:
double GaoDu,BanJing;
string YanSe;
};
int main()
{
double G,B;
string Y;
cout<<"Shu Ru Yuan De BanJing :";
cin>>B;
cout<<"Shu Ru Zhuo De GaoDu :";
cin>>G;
cout<<"Shu Ru Zhuo De YanSe :";
cin>>Y;
roundtable YuanZhuo;
YuanZhuo.iniroundtable(G,B,Y);
YuanZhuo.display();
return 0;
}