screen.width / height提供有关屏幕分辨率的错误信息 [英] screen.width/height give wrong info about screen resolution

问题描述

我的屏幕分辨率为1200 x 800但这个脚本给了我1429 x 893

My screen have resolution 1200 x 800 but this script give me 1429 x 893

<script>
if (screen) { 
var str = "Screen width:" + screen.width + "\n" + 
          "Screen height:" +  screen.height;
alert(str);
}
</script>

为什么它不起作用？

PS在其他网站上这个代码 screen.width + screen.height 但是当它在localhost上运行它会给出错误的信息。

p.s. On other site this code screen.width + screen.height but when run it on localhost it give wrong info.

推荐答案

来自 MDN ：

当
报告屏幕宽度时，Internet Explorer将考虑缩放设置。如果缩放设置为100％，它将仅返回
屏幕的实际宽度。

Internet Explorer will take into account the zoom setting when reporting the screen width. It will only return the real width of the screen if the zoom is set to 100%.

因此由于某种原因浏览器缩放时，屏幕返回错误的分辨率。
点击 ctrl-zero （numpad为零）通过缩放到100％来修复。

So for some reason screen returns the wrong resolution when the browser is zoomed. Hitting ctrl-zero (zero on numpad) fixes that by zooming to 100%.

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