picture控件不显示问题，查了4个小时无收获，求助

Question

小弟在自学MFC，做那个貌似很有名的“幸运52”例题的时候遇到了问题，关键代码如下：Bitmap[0].LoadBitmap(IDB_BITMAP1);
Bitmap[1].LoadBitmap(IDB_BITMAP2);
Bitmap[2].LoadBitmap(IDB_BITMAP3);
Bitmap[3].LoadBitmap(IDB_BITMAP4);
已经导入了位图srand(time(NULL));
CurrentCommodityIndex=rand()%4;if(CurrentCommodityIndex==0)
((CStatic *)GetDlgItem(IDC_PICTURE))->SetBitmap(HBITMAP(Bitmap[0]));
else if(CurrentCommodityIndex==1)
((CStatic *)GetDlgItem(IDC_PICTURE))->SetBitmap(HBITMAP(Bitmap[1]));
else if(CurrentCommodityIndex==2)
((CStatic *)GetDlgItem(IDC_PICTURE))->SetBitmap(HBITMAP(Bitmap[2]));
else if(CurrentCommodityIndex==3)
((CStatic *)GetDlgItem(IDC_PICTURE))->SetBitmap(HBITMAP(Bitmap[3]));
随机动态显示图片，IDC_PICTURE是控件的ID，为什么不显示呢控件属性已经调成了位图格式，编译无错误，只是运行时无响应或无图片显示，在线求解答

Answer 1

Debug下调试一下看哪部函数执行失败？
另外你下面的代码写的太啰嗦了
直接
srand(time(NULL));
((CStatic*)GetDlgItem(IDC_PICTURE)->SetBitmap(Bitmap[rand()%4]);