1、手工测量法：测量一下屏幕对角线，1英寸=2.54厘米，因为显示面积都会小于显示管的大小，显示面积用长与高的乘积来表示，所以通常人们也用屏幕的对角线长度来表示电脑的显示屏尺寸。2、直接在网上查看法：[详细]
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