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843天前#include <iostream> |
using namespace std; |
class rectangle |
{ |
public: |
class point |
{ |
public: |
void setx ( int x ) {itsx=x;} |
void sety ( int y ) {itsy=y;} |
int getx() const {return itsx;} |
int gety() const {return itsy;} |
private: |
int itsx; |
int itsy; |
}; |
point GetUpLeft() const {return upleft;} |
point GetLowLeft() const {return lowerleft;} |
point GetUpRight() const {return upright;} |
point GetLowRight() const {return lowerright;} |
rectangle ( int top,int left,int bottom,int right ); |
~rectangle() {} |
int GetTop() const {return Top;} |
int GetLeft() const {return Left;} |
int GetBottom() const {return Bottom;} |
int GetRight() const {return Right;} |
void SetUpLeft() {upleft.setx ( Left ); upleft.sety ( Top );} |
void SetLowLeft() {lowerleft.setx ( Left ); lowerleft.sety ( Bottom );} |
void SetUpRight() {upright.setx ( Right ); upright.sety ( Top );} |
void SetLowRight() {lowerright.setx ( Right ); lowerright.sety ( Bottom );} |
void SetTop ( int top ) {Top=top;} |
void SetLeft ( int left ) {Left=left;} |
void SetRight ( int right ) {Right=right;} |
void SetBottom ( int bottom ) {Bottom=bottom;} |
int GetArear() const {int width=Right-Left; int height=Bottom-Top; return ( width*height );} |
private: |
point upleft; |
point lowerleft; |
point upright; |
point lowerright; |
int Top; |
int Left; |
int Bottom; |
int Right; |
}; |
rectangle::rectangle ( int top,int left,int bottom,int right ) |
{ |
Top=top; |
Left=left; |
Bottom=bottom; |
Right=right; |
upleft.setx ( Left ); |
upleft.sety ( Top ); |
upright.setx ( Right ); |
upright.sety ( Top ); |
lowerright.setx ( Right ); |
lowerright.sety ( Bottom ); |
lowerleft.setx ( Left ); |
lowerleft.sety ( Bottom ); |
} |
class point |
{ |
public: |
int GetArear ( rectangle &rec ) {return rec.GetArear();} |
}; |
int main() |
{ |
rectangle date ( 40,50,60,80 ); |
cout<<"左边为："<<date.GetLeft() <<endl; |
cout<<"下边为："<<date.GetBottom() <<endl; |
cout<<"左下的X坐标为："<<date.GetLowLeft().getx() <<endl; |
cout<<"左下的y坐标为："<<date.GetLowLeft().gety() <<endl; |
cout<<"矩形面积为:"<<date.GetArear() <<endl; |
cout<<"重新设置Left和Bottom值"<<endl; |
date.SetLeft ( 0 ); |
date.SetBottom ( 100 ); |
date.SetLowLeft(); |
cout<<"左边为："<<date.GetLeft() <<endl; |
cout<<"下边为："<<date.GetBottom() <<endl; |
cout<<"左下的X坐标为："<<date.GetLowLeft().getx() <<endl; |
cout<<"左下的y坐标为："<<date.GetLowLeft().gety() <<endl; |
point pt; |
cout<<"矩形面积为:"<<pt.GetArear ( date ) <<endl; |
system ( "pause" ); |
} |
