ztree 选中，展开指定节点

$.fn.zTree.init($("#tree-div"), setting, zNodes);        $("#tree-div").parent().parent().parent().css("overflow-x","hidden");        var ids = $("#ids").val();if(ids.trim()!=""){       var tree = $.fn.zTree.getZTreeObj("tree-div");        var strs = ids.split(",");        for(var j=0;j<strs.length;j++){            var node = tree.getNodeByParam("id",strs[j]);            var parent = node.getParentNode();            if(!parent.open){           tree.expandNode(parent,true,true);            }            tree.checkNode(node , true,true);         } }