一、前端通过window.screen接口获取屏幕分辨率尺寸颜色深度，横屏竖屏信息。 二、window.screenc++接口实现：1、third_party\blink\renderer\core\frame\screen.idl//https://drafts.csswg.org/cssom-view/#the-screen-interface[Exposed=Window]interfaceScre