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853天前#include<iostream> |
using namespace std; |
class Point |
{ |
public: |
double x,y; |
Point(double a,double b) |
{ |
x=a; |
y=b; |
cout<<"Point : ("<<x<<", "<<y<<") is created."<<endl; |
} |
Point() |
{ |
x=y=0; |
cout<<"Point : ("<<x<<", "<<y<<") is created."<<endl; |
} |
Point (const Point &p) |
{ |
x=p.x; |
y=p.y; |
cout<<"Point : ("<<x<<", "<<y<<") is copied."<<endl; |
} |
~Point() |
{ |
cout<<"Point : ("<<x<<", "<<y<<") is erased."<<endl; |
} |
void show () |
{ |
cout<<"Point : ("<<x<<", "<<y<<")"<<endl; |
} |
}; |
class Line |
{ |
private: |
Point m,n; |
public: |
void SetLine (double a1,double b1,double a2,double b2) |
{ |
m.x=a1; |
m.y=b1; |
n.x=a2; |
n.y=b2; |
} |
Line (Point &a,Point &b):m(a),n(b) |
{ |
cout<<"Line : ("<<m.x<<", "<<m.y<<") to ("<<n.x<<", "<<n.y<<") is created."<<endl; |
} |
Line(double a1=0,double b1=0,double a2=0,double b2=0):m(a1,b1),n(a2,b2) |
{ |
//m.x=m.y=n.x=n.y=0; |
cout<<"Line : ("<<m.x<<", "<<m.y<<") to ("<<n.x<<", "<<n.y<<") is created."<<endl; |
} |
~Line() |
{ |
cout<<"Line : ("<<m.x<<", "<<m.y<<") to ("<<n.x<<", "<<n.y<<") is erased."<<endl; |
} |
double show() |
{ |
cout<<"Line : ("<<m.x<<", "<<m.y<<") to ("<<n.x<<", "<<n.y<<")"<<endl; |
} |
}; |
int main() |
{ |
char c; |
int num, i; |
double x1, x2, y1, y2; |
Point p(1, -2), q(2, -1), t; |
t.show(); |
std::cin>>num; |
Line line[num]; |
for(i = 0; i <num; i++) |
{ |
std::cout<<"=========================\n"; |
std::cin>>x1>>c>>y1>>x2>>c>>y2; |
line[i].SetLine(x1, y1, x2, y2); |
line[i].show(); |
} |
std::cout<<"=========================\n"; |
Line l1(p, q), l2(p, t), l3(q, t), l4(t, q); |
l1.show(); |
l2.show(); |
l3.show(); |
l4.show(); |
} |
by: 发表于：2017-09-01 09:54:14 顶(0) | 踩(0) 回复
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