void CMFCDemoView::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
CEdit *myEdit = new CEdit();
myEdit->Create(WS_CHILD|WS_VISIBLE|WS_BORDER,CRect(point.x,point.y,point.x+200,point.y+200),this,100);
myEdit->ShowWindow(SW_SHOW);
CView::OnLButtonDown(nFlags, point);
}
