回复：C++达人请进 《跪求结果》！！！！

谢谢你巴豆！什么有空请你吃饭！！！！！！！！！！！

客气了

是王建亮王老师的课么？

没错。

要不要把这个删掉呢 老师看到就不好了

哪位给我也发一个 啊

909617510@qq.com   谢了

亲爱的吧主，请于今晚8点半准时删掉这个帖子啊，谢谢了
回复：54楼已经发送，注意查收啊……

是周四晚上公教楼C211的课就对了
52楼说的有道理!!!

#include<iostream>
#include<cmath>
#include<iomanip>
#ifndef CSHAPE_H
#define CSHAPE_h
usingnamespace std;
constfloat PI=3.1;
class CShape//CShape抽象类定义
{
public:
      virtualfloat length()//图形长度
      {
          return 0.0;
      }
      virtualfloat area()//图形面积
      {
          return 0.0;
      }
      virtualfloat valum()//图形体积
      {
          return 0.0;
      }
      virtualfloat zc()//图形周长
      {
          return 0.0;
      }
      virtualvoid draw()=0;//描绘图形
    
};
class CPoint:virtualpublic CShape//CPoint类定义
{
protected:
      float x,y;
public:
      CPoint(float a,float b)
      {
          x=a;
          y=b;
      }
      void setpoint(float a,float b)
      {
          x=a;
          y=b;
      }
      void draw()
      {
          cout<<"点的坐标为："<<"("<<x<<","<<y<<")"<<endl;
      }
    
};
class CLine:virtualpublic CShape//线类定义
{
protected:
      float x,y,z,k;
public:
      CLine(float a,float b,float c,float d)
      {
          x=a;
          y=b;
          z=c;
          k=d;
      }
      void setline(float a,float b,float c,float d)
      {
          x=a;
          y=b;


          z=c;
          k=d;
      }
      float length()
      {
          return(sqrt((x-z)*(z-z)+(y-k)*(y-k)));
      }
      void draw()
      {
          cout<<"两坐标分别为："<<"("<<x<<","<<y<<")"<<"，（"<<z<<","<<k<<")"<<endl;
      }
};
class CRectangle:virtualpublic CShape//长方形类定义
{
protected:
      float length,width;
public:
      CRectangle(float l,float w)
      {
          length=l;
          width=w;
      }
      void setrectangle(float l,float w)
      {
          length=l;
          width=w;
      }
      float area()
      {
          return(length*width);
      }
      float zc()
      {
          return(2*(length+width));
      }
      void draw()
      {
          cout<<"长方形的长为："<<length<<setw(10)<<"宽为:"<<width<<endl;
      }
};
class CCircle:virtualpublic CShape//圆类定义
{
protected:
      float radius;
public:
      CCircle(float r)
      {
          radius=r;
      }
      void setcircle(float r)
      {
          radius=r;
      }
      float area()
      {
          return(PI*radius*radius);
      }
      float zc()


      {
          return(2*PI*radius);
      }
      void draw()
      {
          cout<<"圆的半径为："<<radius<<endl;
      }
};
class CCylinder:virtualpublic CShape//圆柱类定义
{
protected:
      float heigth,radius;
public:
      CCylinder(float r,float h)
      {
          heigth=h;
          radius=r;
      }
      void setcylinder(float r,float h)
      {
          heigth=h;
          radius=r;
      }
      float area()
      {
          return(PI*radius*radius+2*PI*radius);
      }
      float valum()
      {
          return(PI*radius*radius*heigth);
      }
      void draw()
      {
          cout<<"圆柱高度为："<<heigth<<setw(10)<<"半径为："<<radius<<endl;
      }
};
class CCone:virtualpublic CShape//定义一个圆锥类
{
protected:
      float mx,radius;
public:
      CCone(float a,float b)
      {
          mx=a;
          radius=b;
      }
      void setcone(float a,float b)
      {
          mx=a;
          radius=b;
      }
      float valum()
      {
          return(PI*radius*radius*sqrt(mx*mx-radius*radius));
      }
      void draw()
      {
          cout<<"母线长为："<<mx<<setw(10)<<"半径长为："<<radius<<endl;


      }
};
class CTriangle:virtualpublic CShape//三角形类定义
{
protected:
      float x,y,z;
public:
      CTriangle(float a,float b,float c)
      {
          x=a;y=b;z=c;
      }
      void settriangle(float a,float b,float c)
      {
          x=a;y=b;z=c;
      }
      float zc()
      {
          return(x+y+z);
      }
      float area()
      {
          float t=(x+y+z)/2;
          return(sqrt((t-x)*(t-y)*(t-z)));
      }
      void draw()
      {
          cout<<"三角形三边长分别为："<<x<<","<<y<<","<<z<<endl;
      }
};
class CPolygon:virtualpublic CShape//多边形类定义
{
protected:
      float x;
      int y;
public:
      CPolygon(float a,int b)
      {
          x=a;
          y=b;
      }
      void setpolygon(float a,int b)
      {
          x=a;
          y=b;
      }
      float area()
      {
          return(sqrt(3.0)*x*x*y/4);
      }
      float zc()
      {
          return(x*y);
      }
      void draw()
      {
          cout<<"多边形的一边长为："<<x<<setw(10)<<"边数为："<<y<<endl;
      }
};
#endif
#include"CShape.h"
#include<iostream>
#include<iomanip>
usingnamespace std;


void main()
{   
      char d='y';
    
      int i(0);
      cout<<"欢迎进入本系统！";
      cout<<"请选择服务："<<endl;
      cout<<"            1.点的计算。"<<endl;
      cout<<"            2.线的计算。"<<endl;
      cout<<"            3.圆的计算。"<<endl;
      cout<<"            4.圆柱的计算。"<<endl;
      cout<<"            5.圆锥的计算。"<<endl;
      cout<<"            6.长方形的计算。"<<endl;
      cout<<"            7.多边形的计算。"<<endl;
      cout<<"            8.三角形的计算。"<<endl;
      cout<<"            9.退出。"<<endl;
      while(d=='Y'||d=='y')
      {
          cout<<"请输入你的选择："<<endl;
      cin>>i;
if(i==1)
{
      CShape *pshape;
      CPoint point(2.0,3.0);
      float a,b;
      cout<<"请输入点的坐标：";
      cin>>a>>b;
      point.setpoint(a,b);
      pshape=&point;
     pshape->draw();
}
elseif(i==2)
{
      CShape *pshape;
      CLine line(1.0,2.0,3.0,4.0);
      float a,b,c,d;
      cout<<"请依次输入两端点的坐标：";
      cin>>a>>b>>c>>d;
      line.setline(a,b,c,d);
      pshape=&line;
      pshape->draw();
      cout<<"线的长度为："<<pshape->length()<<endl;
}
elseif(i==3)


{
      CShape *pshape;
      CCircle circle(2.0);
      float a;
      cout<<"请输入圆的半径：";
      cin>>a;
      circle.setcircle(a);
      pshape=&circle;
     pshape->draw();
     cout<<"圆的面积为;"<<pshape->area()<<setw(10)<<"圆的周长为;"<<pshape->zc()<<endl;
}
elseif(i==4)
{
      CShape *pshape;
      CCylinder yz(2.0,3.0);
      float a,b;
      cout<<"请输入圆柱的底面半径和高：";
      cin>>a>>b;
      yz.setcylinder(a,b);
      pshape=&yz;
     pshape->draw();
     cout<<"圆柱的面积为："<<pshape->area()<<setw(10)<<"圆柱的体积为："<<pshape->valum()<<endl;
}
elseif(i==5)
{
      CShape *pshape;
      CCone cone(5.0,4.0);
      float a,b;
      cout<<"请输入母线长和底面半径：";
      cin>>a>>b;
      cone.setcone(a,b);
      pshape=&cone;
      pshape->draw();
      cout<<"圆锥的体积为："<<pshape->valum()<<endl;
}
elseif(i==6)
{
      CShape *pshape;
      CRectangle rectangle(3.0,2.0);
      float a,b;
      cout<<"请输入长方形的长和宽：";
      cin>>a>>b;
      rectangle.setrectangle(a,b);
      pshape=&rectangle;
      pshape->draw();
      cout<<"长方形的面积为："<<pshape->area()<<setw(10)<<"长方形的周长为："<<pshape->zc()<<endl;
}
elseif(i==7)
{
      CShape *pshape;
      CPolygon polygon(2.0,4);
      float a;
      int b;
      cout<<"请输入多边形的边长和边数：";
      cin>>a>>b;
      polygon.setpolygon(a,b);
      pshape=&polygon;
      pshape->draw();
      cout<<"多边形的面积为："<<pshape->area()<<setw(10)<<"周长为："<<pshape->zc()<<endl;
}
elseif(i==8)
{
      CShape *pshape;
      CTriangle triangle(3.0,4.0,5.0);
      float a,b,c;
      cout<<"请输入三角形三边长：";
      cin>>a>>b>>c;
      triangle.settriangle(a,b,c);
      pshape=&triangle;
      pshape->draw();
      cout<<"三角形的周长为："<<pshape->zc()<<"面积为："<<pshape->area()<<endl;
}
elseif(i==9)
{
      return;
}
else
{
      cout<<"输入错误，请重新输入！";
}
cout<<"是否继续其他操作（Y/N）?"<<endl;
cin>>d;
}
}