官方API
zree3.0如何默认选中某个节点
var treeObj = $.fn.zTree.getZTreeObj("leftTree");
var node = treeObj.getNodeByParam("agentNo", agentNo, null);
treeObj.selectNode(node);
var treeObj = $.fn.zTree.getZTreeObj("leftTree");
var node = treeObj.getNodeByParam("agentNo", agentNo, null);
treeObj.selectNode(node);