//照片墙图片懒加载function lazyLondImg() {    var lazyImgs = $(".js-lazyLoad"), //需要懒加载的图片        lazyIndex = 0, //加载到的图片index        curHeight = document.documentElement.clientHeight, //初始页面高度        myY = 0, tmpY = 0;    function showImg() {        for(var i = lazyIndex; i < lazyImgs.length; i++){            var curImgEle = lazyImgs[i];            var imgTop = curImgEle.parentNode.offsetTop;            if((imgTop-$("body").scrollTop()) <= curHeight + 10){//                页面初始化加载浏览器可见区域图片                lazyIndex = i;                curImgEle.setAttribute("src",curImgEle.getAttribute("datasrc"));            }else{                break;            }        }    }    showImg();    document.body.addEventListener("touchstart",function (event) {        myY = event.touches[0].clientY;    });    document.body.addEventListener("touchmove",function (event) {        tmpY = event.touches[0].clientY;        if(myY - tmpY >= 10){            showImg();        }    });    document.body.addEventListener("touchend",function (event) {        showImg();    });}