用C++封装了一个简单的“按钮”类

功能简单，仅仅实现按钮的按下和松开的效果，按钮具体实现什么功能就由开发者自己定义了

 1 #include<graphics.h>
 2 #include<iostream>
 3 #include <conio.h>
 4 using namespace std;
 5 class botton{
 6 public:
 7     int x,y,w,h;//起点坐标，宽度和高度
 8     char s[100];//显示文字
 9     botton(int xx,int yy,int ww,int hh,char s[])//建立按钮
10     {
11         x=xx;
12         y=yy;
13         w=ww;
14         h=hh;
15         setlinestyle(PS_SOLID,NULL,1);
16         setcolor(WHITE);
17         line(x,y,x+w,y);
18         line(x,y,x,y+h);
19         setcolor(BLACK);
20         line(x+w,y+h,x+w,y);
21         line(x+w,y+h,x,y+h);
22         
23         outtextxy(x+2,y+2,s);
24     }
25     void LBOTTON_DOWN()//鼠标左键按下
26     {
27         setlinestyle(PS_SOLID,NULL,1);
28         setcolor(BLACK);
29         line(x,y,x+w,y);
30         line(x,y,x,y+h);
31         setcolor(WHITE);
32         line(x+w,y+h,x+w,y);
33         line(x+w,y+h,x,y+h);
34     }
35     void LONTTON_UP()//鼠标左键松开
36     {
37         setlinestyle(PS_SOLID,NULL,1);
38         setcolor(WHITE);
39         line(x,y,x+w,y);
40         line(x,y,x,y+h);
41         setcolor(BLACK);
42         line(x+w,y+h,x+w,y);
43         line(x+w,y+h,x,y+h);
44     }
45 };
46 int main()
47 {
48     initgraph(600,600);
49     setbkcolor(RGB(230,230,230));
50     cleardevice();
51     setcolor(BLACK);
52     botton b1(100,100,35,20,"文件");
53     getch();
54     b1.LBOTTON_DOWN();
55     getch();
56     b1.LONTTON_UP();
57     getch();

58 }