// 横屏竖屏函数function orientationChange(){    switch(window.orientation) {        case 0: // Portrait        case 180: // Upside-down Portrait        //Javascript to setup Portrait view        window.location.reload();               break;        case -90: // Landscape: turned 90 degrees counter-clockwise        case 90: // Landscape: turned 90 degrees clockwise        //Javascript to steup Landscape view        window.location.reload();               break;    }} window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", orientationChange, false); // 横屏竖屏时间