jstree.js切换图标样式

rendertree: function () {
    $('#lazy')
    .jstree({
        "themes": {
            "stripes": true,
        },
        "types": {
            "default" : {
                "icon": "fa fa-user"
            },
            'nouser': {
                "icon": 'fa fa-user-o'
            }
        },
        "plugins": ["changed", "types"],
        'core' : {
            "data": {
                "url": 'agent/agent/index/',
                // "type": 'get',
                "data": function (content) {
                    return { "agentid": content.id };
                },
            }
        }
    }).on("load_node.jstree",function(e,d){
        // console.log(e)
        // console.log(d)
        var nodes = d.node.children_d;
        for(var i in nodes){
            var node = d.instance.get_node(nodes[i]);
            if( !node.original.haschild ){
                // d.instance.set_icon(node, 'nouser'); //nouser此处为class
                d.instance.set_type(node, 'nouser');
            }
        }
    });

},