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用CSS判断横屏竖屏问题。CSS代码如下
1、
@media (orientation: portrait) { } 横屏
@media (orientation: landscape) { }竖屏
2、
<link rel="stylesheet" media="all and (orientation:portrait)" href="portrait.css">横屏
<link rel="stylesheet" media="all and (orientation:landscape)" href="landscape.css">竖屏
用JavaScript判断横屏竖屏问题。JavaScript代码如下
//判断手机横竖屏状态：function hengshuping(){ if(window.orientation==180||window.orientation==0){ alert("竖屏状态！") }if(window.orientation==90||window.orientation==-90){ alert("横屏状态！") } }window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", hengshuping, false);//移动端的浏览器一般都支持window.orientation这个参数，通过这个参数可以判断出手机是处在横屏还是竖屏状态。从而根据实际需求而执行相应的程序。通过添加监听事件onorientationchange，进行执行就可以了。