解决ztree搜索中多级菜单展示不全问题

var setting = {    data: {      key: {        title: "t"      },      simpleData: {        enable: true      }    },    view: {      fontCss: getFontCss    }  };  var zNodes =[    { id:1, pId:0, name:"系统参数",open:true},    { id:11, pId:1, name:"通用参数"},    { id:111, pId:11, name:"状态A"},    { id:112, pId:11, name:"状态B"},    { id:12, pId:1, name:"日志"},    { id:121, pId:12, name:"操作类型"},    { id:122, pId:12, name:"操作结果"},    { id:1221, pId:122, name:"操作结果1"},    { id:1222, pId:122, name:"操作结果2"},    { id:12221, pId:1222, name:"操作结果21"},    { id:12222, pId:1222, name:"操作结果22"},    { id:12223, pId:1222, name:"操作结果23"},    { id:2, pId:0, name:"业务参数",open:true},    { id:21, pId:2, name:"工单类型"},    { id:22, pId:2, name:"监控类型"},    { id:23, pId:22, name:"监控子类型1"},    { id:24, pId:22, name:"监控子类型2"},    { id:25, pId:24, name:"监控子子类型1"},    { id:26, pId:24, name:"监控子子类型2"},  ];  var lastValue = '', nodeList = [], fontCss = {};  function searchNode(e) {    var zTree = $.fn.zTree.getZTreeObj("treeDemo");    var value = $.trim(key.val());    lastValue = value;    //zTree.expandAll(true);    $('#treeDemo').html("");    $.fn.zTree.init($("#treeDemo"), setting, zNodes);    if (value != "") {      nodeList = zTree.getNodesByParamFuzzy("name", value);    } else {      nodeList = zTree.getNodesByParamFuzzy("name", "|||||||||||||||");    }    updateNodes(true);  }  var parentNode = [];  function updateNodes(highlight) {    var zTree = $.fn.zTree.getZTreeObj("treeDemo");    parentNode = [];    for( var i=0, l=nodeList.length; i<l; i++) {      nodeList[i].highlight = highlight;      zTree.updateNode(nodeList[i]);      if (!nodeList[i].isParent && !parentNode.contains(nodeList[i].getParentNode().pId)) {        zTree.expandNode(nodeList[i].getParentNode(), true, true, true);        parentNode.push(nodeList[i].getParentNode().pId);        console.log(nodeList[i].getParentNode().pId);      } else {        zTree.expandNode(nodeList[i], true, true, true);      }    }    console.log(parentNode);  }  Array.prototype.contains = function (obj) {    var i = this.length;    while (i--) {      if (this[i] === obj) {        return true;      }    }    return false;  }  function getFontCss(treeId, treeNode) {    return (!!treeNode.highlight) ? {color:"#A60000", "font-weight":"bold"} : {color:"#333", "font-weight":"normal"};  }  var key;  $(document).ready(function(){    $.fn.zTree.init($("#treeDemo"), setting, zNodes);    key = $("#search_name");    key.bind("blur", searchNode);  });