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10 年
Rectangle.IntersectsWith判断矩形相交
我在窗体上用鼠标画出一个矩形,然后通过和包含的控件的bounds做交集判断来确定是否在选中区域内,如果是从左上到右下这样画矩形的话可以判断出来,但是,从右下到左上的话就不行了,只要在选定的矩形里有负数的话就不行,求大侠支招,有什么好办法吗 ...
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