js如何强制竖屏

1、单纯安卓手机只需设置meta值<metaname="msapplication-tap-highlight"content="no">此设置只对安卓机有用，苹果机没效果

2、js判断屏幕横竖屏：判断window.orientation值,90/-90,为横屏 window.orientation值,0/180,为竖屏竖屏时不做任何操作,横屏时移除class: landscapefunction orient() {//;if (window.orientation == 0 || window.orientation == 180)return false;}else if (window.orientation == 90 || window.orientation == -90) {$("body").attr("class", "landscape"); //当横屏的时候为body移除这个classorientation = 'landscape';return false;}}

3、 调用方法:orient();$(function(){orient();});$(window).bind( 'orientationchange', function(e){orient();});