判断手机横竖屏

//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);