[紧急求助]小程序退出时出错。多谢都来帮帮忙吧……
#include<iostream.h>#include<string.h>
#include<assert.h>
#include<iomanip.h>
#include<math.h>
#define NUM 50 //定义每个类数组的最大成员个数
class Point //定义点类即角色
{
public:
void set(int xx,int yy) //赋值坐标
{
x=xx;
y=yy;
}
void setname(char *n) //赋值名字
{
name=new char[strlen(n)+1]; //申请空间
assert(name!=0); //判断是否申请成功
strcpy(name,n);
}
int getx() //返回坐标x
{
return x;
}
int gety() //返回坐标y
{
return y;
}
char *getname() //返回名字
{
return name;
}
friend ostream & operator<<(ostream &output,Point &); //重载流输出运算符
virtual ~Point() //定义虚析构函数
{
delete [] name;
}
private:
int x,y;
char *name;
};
ostream & operator<<(ostream &output,Point &q)
{
output <<"("<<q.getx()<<","<<q.gety()<<")"<<";"<<q.getname()<<endl;
return output;
}
class Line:public Point //定义线类即道路
{
public:
void set(int xx1,int yy1,int xx2,int yy2) //赋值道路两端点坐标
{
x1=xx1;
y1=yy1;
x2=xx2;
y2=yy2;
}
int getx1() //返回坐标x1
{
return x1;
}
int gety1() //返回坐标y1
{
return y1;
}
int getx2() //返回坐标x2
{
return x2;
}
int gety2() //返回坐标y2
{
return y2;
}
friend ostream & operator<<(ostream &output,Line &); //重载流输出运算符
~Line(){} //自定义析构函数
private:
int x1,y1,x2,y2;
};
ostream & operator<<(ostream &output,Line &q)
{
output <<sqrt((q.getx1()-q.getx2())*(q.getx1()-q.getx2())+(q.gety1()-q.gety2())*(q.gety1()-q.gety2()))<<";"<<q.getname()<<endl;
return output;
}
class Rectangle:public Point //定义矩形类即小地图
{
public:
void setlw(int l,int w) //赋值矩形长、宽
{
length=l;
width=w;
}
int getlength() //返回矩形长
{
return length;
}
int getwidth() //返回矩形宽
{
return width;
}
friend ostream & operator<<(ostream &output,Rectangle &); //重载流输出运算符
~Rectangle(){} //自定义析构函数
private:
int length,width;
};
ostream & operator<<(ostream &output,Rectangle &q)
{
output <<"("<<q.getx()<<","<<q.gety()<<")"<<";"<<q.getlength()*q.getwidth()<<";"<<q.getname()<<endl;
return output;
}
void menu() //用户操作选单函数
{
cout<<"|------------------MENU------------------|"<<endl;
cout<<"Input New Point&Output Point.............1"<<endl;
cout<<"Input New Line&Output Line...............2"<<endl;
cout<<"Input New Rectangle&Output Rectangle.....3"<<endl;
cout<<"Quit.....................................0"<<endl;
}
void main()
{
Point p[NUM]; //点类数组
Line li[NUM]; //线类数组
Rectangle r[NUM]; //矩形类数组
int xx,yy,xx1,yy1,xx2,yy2,l,w;
int c;
int i=0,j=0,k=0;
int sum=0;
int a,b,d;
char n[NUM];
menu();
cout<<"Please chioce:";
cin>>c;
while(c!=0)
{
switch(c)
{
case 1:
cout<<"Enter x and y:";
cin>>xx>>yy;
if(i>NUM)
{
cout<<"no position!"<<endl;
break;
}
p[i].set(xx,yy);
cout<<"Enter point's name:";
cin>>n;
p[i].setname(n);
cout<<"completed."<<endl;
for(a=0;a<i+1;a++)
cout<<p[a];
sum=sum+1; //计算角色个数
cout<<"Totally "<<sum<<" persons."<<endl;
i=i+1;
break;
case 2:
cout<<"Enter x1,y1 and x2,y2:";
cin>>xx1>>yy1>>xx2>>yy2;
if(j>NUM)
{
cout<<"no position!"<<endl;
break;
}
li[j].set(xx1,yy1,xx2,yy2);
cout<<"Enter line's name:";
cin>>n;
li[j].setname(n);
cout<<"completed."<<endl;
for(b=0;b<j+1;b++)
cout<<li[b];
j=j+1;
break;
case 3:
cout<<"Enter x and y:";
cin>>xx>>yy;
if(k>NUM)
{
cout<<"no position!"<<endl;
break;
}
r[k].set(xx,yy);
cout<<"Enter length and width:";
cin>>l>>w;
r[k].setlw(l,w);
cout<<"Enter rectangle's name:";
cin>>n;
r[k].setname(n);
cout<<"completed."<<endl;
for(d=0;d<k+1;d++)
cout<<r[d];
k=k+1;
break;
}
menu();
cout<<"Please chioce:";
cin>>c;
}
}
编译没错误。运行没错误。唯独选择0退出的时候跳出那个发送错误报告的错误对话框。这是怎么回事？多谢了。我比较急。 加个自定义构造函数就OK了。问题解决。
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