// 要绑定的图片地址

<img data-src={url} alt=" ">

var Lazy = {

    "Img": null,

    "getY": function(b) {

        var a = 0;

        if (b && b.offsetParent) while (b.offsetParent) a += b.offsetTop, b = b.offsetParent; else b && b.y && (a += b.y);

        return a;

    },

    "getX": function(b) {

        var a = 0;

        if (b && b.offsetParent) while (b.offsetParent) a += b.offsetLeft, b = b.offsetParent; else b && b.x && (a += b.X);

        return a;

    },

    "scrollY": function() {

        var a = document.documentElement;

        return self.pageYOffset || a && a.scrollTop || document.body.scrollTop || 0;

    },

    "scrollX": function() {

        var a = document.documentElement;

        return self.pageXOffset || a && a.scrollLeft || document.body.scrollLeft || 0;

    },

    "windowWidth": function() {

        var a = document.documentElement;

        return self.innerWidth || a && a.clientWidth || document.body.clientWidth;

    },

    "windowHeight": function() {

        var a = document.documentElement;

        return self.innerHeight || a && a.clientHeight || document.body.clientHeight;

    },

    "CurrentHeight": function() {

        return Lazy.scrollY() + Lazy.windowHeight();

    },

    "CurrentWidth": function() {

        return Lazy.scrollX() + Lazy.windowWidth();

    },

    "Load": function(d) {

        Lazy.Init();

        var f = Lazy.CurrentHeight(), b = Lazy.CurrentWidth();

        for (_index = 0; _index < Lazy.Img.length; _index++) {

            var a = Lazy.Img[_index];

            $(a).attr("lazy") == undefined && $(a).attr("lazy", "n");

            if ($(a).attr("lazy") == "y") continue;

            /*$(a).bind("error", function() {

                this.id == "subject" ? $(this).attr("src", "") : $(this).attr("src", "http://wap.cmread.com/rbc/p/content/repository/ues/image/s109/nopic.png");

            });*/

            if (d == undefined || d == "" || d == null) {

                var c = Lazy.getY(a), e = Lazy.getX(a);

                //e < b && c < f && (a.src = a.getAttribute("data-src"), $(a).attr("lazy", "y"), a.removeAttribute("data-src"));

                c < f && (a.src = a.getAttribute("data-src"), $(a).attr("lazy", "y"), a.removeAttribute("data-src"));

                $(a).attr("data-rel",e);

            } else if (d == "x") {

                var c = Lazy.getX(a);

                c < b && (a.src = a.getAttribute("data-src"), $(a).attr("lazy", "y"));

            }

        }

    },

    "Init": function() {

        var a = document.querySelectorAll("img[data-src]");

        Lazy.Img = a;

    }

};

//为滚动轴绑定图片懒加载事件

document.onscroll = function(){Lazy.Load();};

setTimeout(function(){Lazy.Load();},100);//默认配置懒加载