//设置html的font-size
var EventUtil = {
addHandler: function(element, type, handler){
if (element.addEventListener){
element.addEventListener(type, handler, false);
} else if (element.attachEvent){
element.attachEvent("on" + type, handler);
} else {
element["on" + type] = handler;
}
}
};
function change() {
var window_w = document.documentElement.clientWidth;
window_w = window_w > 640 ? 640 : window_w;
//如果移动端设计稿是1920px的,window_w就除以19.2
document.documentElement.style.fontSize = window_w / 6.4 + 'px';
}
change();
//检测手机横竖屏
EventUtil.addHandler(window, 'orientationchange', change);
EventUtil.addHandler(window, 'resize', change);
//屏幕尺寸变化
// window.addEventListener('orientationchange',change,false);
window.addEventListener('resize',change,false);