var data =http://www.mamicode.com/ [    {        code: "1",        parentCode: "0",        name: "水果"    },    {        code: "2",        parentCode: "1",        name: "苹果"    },    {        code: "3",        parentCode: "1",        name: "桔子"    },    {        code: "4",        parentCode: "1",        name: "香蕉"    },    {        code: "5",        parentCode: "0",        name: "动物"    },    {        code: "6",        parentCode: "5",        name: "老虎"    },    {        code: "7",        parentCode: "5",        name: "熊猫"    },    {        code: "8",        parentCode: "5",        name: "狗"    },    {        code: "33",        parentCode: "0",        name: "植物"    }];$(function () {    init();    function render(e, f, g) {        //e:模板        //f:节点code        //g:节点        var h = [];        if ($.each(data, function (a, b) {            b.parentCode == f && h.push(b)        }), h.length != 0) {            var j = Mustache.render(e, { subjects: h });            g.append(j);        }    }    function treeLevel1Click() {        var e = $(this).find("ul");        var tree_level_leaf = ‘<ul class="ul-leaf">{{#subjects}}<li class="children children-lv2" id="subject_{{code}}"><a class="lv2-title" href="javascript:void(0);"><span class="checkbox"></span><span class="lv2-text">{{name}}</span><span class="help"></span></a><div class="lv2-info"></div></li>{{/subjects}}</ul>‘;        e.length > 0 ? (e.toggle()) : render(tree_level_leaf, this.id.substr(8), $(this));        $(this).addClass("active");    }    function init()    {        var c = $("#subjectTree")        var g = $(".classify-children");        var i = ‘{{#subjects}}<li class="children children-lv1" id="subject_{{code}}"><a class="lv1-title" href="javascript:void(0);">{{name}}<span class="triangle-down"></span></a></li>{{/subjects}}‘;        render(i, 0, g);        c.delegate(".children-lv1", "click", treeLevel1Click);    }});