zTree自动点击第一个节点

        var setting = {            view: {                dblClickExpand: true,//双击展开                showLayer: false,                selectedMulti: false,//是否允许多选                showIcon: showIconForTree//显示节点小图标            },            data: {                simpleData: {                    enable: true,                    idKey: "id",                    pIdKey: "pId",                    rootPId: "0"                }            },            callback: {                beforeClick: beforeClick,                onClick: onClick            }        };        //加载当前项目的树形结构信息列表        function loadStructureInfoTreeJson(projectId) {            $.ajax({                type: "POST",                dataType: "json",                url: "../Tools/StructureModel.ashx",                data: { act: "LoadModelTreeByProjectid",                    pid: projectId                },                success: function (data) {                    if (data.length == 0) {                    } else {                        $.fn.zTree.init($("#tree"), setting, data);                        var zTree = $.fn.zTree.getZTreeObj("tree");//获取ztree对象                        var node = zTree.getNodeByParam('id', 1);//获取id为1的点                        zTree.selectNode(node);//选择点                        zTree.setting.callback.onClick(null, zTree.setting.treeId, node);//调用事件                    }                },                error: function () {                    alert("载入树形结构出现问题！");                }            });        }        function showIconForTree(treeId, treeNode) {            return treeNode.isParent;//如果是父节点就显示小图标        };