case WM_PAINT:
      hdc = BeginPaint(hWnd, &ps);
      hbrush=CreateSolidBrush(RGB(240,240,240));//矩形背景色
      hpen=CreatePen(PS_SOLID,2,RGB(50,50,50));//矩形边框色
      hbrushold = SelectObject(hdc,hbrush);//画刷
      hpenold = SelectObject(hdc,hpen);//画笔
      Rectangle(hdc,1,1,300,540);//绘制游戏区域矩形
      Rectangle(hdc,338,40,458,160);//绘制"下一个"矩形
      DeleteObject(SelectObject(hdc,hbrushold));
      hbrush=CreateSolidBrush(RGB(226,121,7));//矩形背景色
      SelectObject(hdc,hbrush);//画刷
      if(gamestatus!=0)
      {
        for(i=0;i<10;i++)
          for(j=0;j<18;j++)
            if(mainmap[i][j]==1) Rectangle(hdc,i*30,j*30,i*30+30,j*30+30);//绘制主棋盘数据
        for(i=0;i<4;i++)
          for(j=0;j<4;j++)
            if(cube[next][0][i][j]==1) Rectangle(hdc,338+i*30,40+j*30,338+i*30+30,40+j*30+30);//绘制"下一个"
      }
      DeleteObject(SelectObject(hdc,hbrushold));
      DeleteObject(SelectObject(hdc,hpenold));
      EndPaint(hWnd, &ps);
      break;