((win)=>{
var tid,
refreshWidth = () => {
var cliR = win.document.documentElement.getBoundingClientRect() //
var width=cliR.width
var height=cliR.height
win.clearTimeout(tid);
tid=win.setTimeout(console.log(width),300)
}
win.addEventListener('resize',()=>{
refreshWidth()
})
win.addEventListener('pageshow',(e) => { //onload 之后 初始化显示
if(e.persisted){ //从缓存加载
refreshWidth()
}
})
})(window)