[{
        "title": "ISC",
        "key": "A",
        "children": [{
            "title": "上海",
            "key": "A1"
        }, {
            "title": "成都",
            "key": "A2",
            "children": [{
                "title": "销售",
                "key": "A2.1",
                "children": [{
                    "title": "测试",
                    "key": "A2.1.1",
                    "children": [{
                        "title": "测试",
                        "key": "A2.1.1.1"
                    }]
                }, {
                    "title": "测试",
                    "key": "A2.1.2",
                    "children": [{
                        "title": "测试",
                        "key": "A2.1.2.1"
                    }]
                }, {
                    "title": "测试",
                    "key": "A2.1.3",
                    "expanded": false,
                    "children": [{
                        "title": "测试",
                        "key": "A2.1.3.1"
                    }]
                }]
            }]
        }]
    },
    {
        "title": "KNX",
        "key": "B",
        "children": [{
            "title": "上海",
            "key": "B1"
        }, {
            "title": "成都",
            "key": "B2",
            "children": [{
                "title": "销售",
                "key": "B2.1",
                "children": [{
                    "title": "测试",
                    "key": "B2.1.1",
                    "children": [{
                        "title": "测试",
                        "key": "B2.1.1.1"
                    }]
                }, {
                    "title": "测试",
                    "key": "B2.1.2",
                    "children": [{
                        "title": "测试",
                        "key": "B2.1.2.1"
                    }]
                }, {
                    "title": "测试",
                    "key": "B2.1.3",
                    "expanded": false,
                    "children": [{
                        "title": "测试",
                        "key": "B2.1.3.1"
                    }]
                }]
            }]
        }]
    },
    {
        "title": "其他",
        "key": "C",
        "children": [{
            "title": "上海",
            "key": "C1"
        }, {
            "title": "成都",
            "key": "C2",
            "children": [{
                "title": "销售",
                "key": "C2.1",
                "children": [{
                    "title": "测试",
                    "key": "C2.1.1",
                    "children": [{
                        "title": "测试",
                        "key": "C2.1.1.1"
                    }]
                }, {
                    "title": "测试",
                    "key": "C2.1.2",
                    "children": [{
                        "title": "测试",
                        "key": "C2.1.2.1"
                    }]
                }, {
                    "title": "测试",
                    "key": "C2.1.3",
                    "expanded": false,
                    "children": [{
                        "title": "测试",
                        "key": "C2.1.3.1"
                    }]
                }]
            }]
        }]
    }
]