对话框可停靠于屏幕顶端,此时只能左右拖动.可取消停靠。对话框可停靠于屏幕任意一边,上,下停靠时只能左右拖动.左,右停靠时只能上下拖动。-Dialog box can be docked at the top of the screen, this time around can only drag. Cancel the call. Dialog box can be docked on either side of the screen, the upper and lower stops w