这个方法如果是对于下面的三级树的话可以拿到爷爷Id,自己Id,父亲Id;其实如果想要拿到label的话就把data.id换成data.label就行了

function treeFindPath(tree, func, path = []) {
        if (!tree) return []
        for (const data of tree) {
          path.push(data.id)
          if (func(data)) return path
          if (data.children) {
            const findChildren = treeFindPath(data.children, func, path)
            if (findChildren.length) return findChildren
          }
          path.pop()
        }
        return []
      }
      const i = treeFindPath(this.treeData, node => node.label === result)

比如树结构是这样的:这相当于是多可三级树

 "data": [
    {
      "id": "1",
      "label": "能动中心",
      "type": "1",
      "children": [
        {
          "id": "11",
          "label": "罐底视频",
          "type": "2",
          "children": [
            {
              "id": "111",
              "type": "3",
              "label": "四高炉6道"
            },
            {
              "id": "112",
              "type": "3",
              "label": "西渣罐底"
            }
          ]
        },
        {
          "id": "12",
          "label": "煤气柜站",
          "type": "2",
          "children": [
            {
              "id": "121",
              "type": "3",
              "label": "13号道口02"
            },
            {
              "id": "122",
              "type": "3",
              "label": "13号道口01"
            },
            {
              "id": "123",
              "type": "3",
              "label": "能动中心楼顶"
            }
          ]
        },
        {
          "id": "13",
          "label": "能动中心楼顶",
          "type": "2",
          "children": [
            {
              "id": "131",
              "type": "3",
              "label": "44455666"
            }
          ]
        }
      ]
    },
    {
      "id": "2",
      "label": "炼铁厂",
      "type": "1",
      "children": [
        {
          "id": "21",
          "label": "星云智联",
          "type": "2",
          "children": [
            {
              "id": "211",
              "type": "3",
              "label": "程控楼3楼"
            },
            {
              "id": "212",
              "type": "3",
              "label": "程控楼1楼过道西侧"
            },
            {
              "id": "213",
              "type": "3",
              "label": "程控楼2楼大厅"
            },
            {
              "id": "214",
              "type": "3",
              "label": "公司主楼5楼西侧"
            }
          ]
        },
        {
          "id": "22",
          "label": "翻车机溜车线区域",
          "type": "2",
          "children": [
            {
              "id": "221",
              "type": "3",
              "label": "炼钢球罐全貌1"
            }
          ]
        },
        {
          "id": "23",
          "label": "焦化化产作业区",
          "type": "2",
          "children": [
            {
              "id": "231",
              "type": "3",
              "label": "4#万立储槽全貌"
            },
            {
              "id": "232",
              "type": "3",
              "label": "4#万立中压氧压机"
            },
            {
              "id": "233",
              "type": "3",
              "label": "4#万立变电所低压室"
            }
          ]
        }
      ]
    },
    {
      "id": "3",
      "label": "炼钢厂",
      "type": "1",
      "children": [
        {
          "id": "31",
          "label": "熔融金属及吊运区域",
          "type": "2",
          "children": [
            {
              "id": "311",
              "type": "3",
              "label": "8号吊点鞍马座"
            },
            {
              "id": "312",
              "type": "3",
              "label": "8号起吊点右"
            }
          ]
        },
        {
          "id": "32",
          "label": "区域监控",
          "type": "2",
          "children": [
            {
              "id": "321",
              "type": "3",
              "label": "测试点33"
            },
            {
              "id": "322",
              "type": "3",
              "label": "原料跨1"
            },
            {
              "id": "323",
              "type": "3",
              "label": "板坯LH钒铁柜"
            }
          ]
        },
        {
          "id": "33",
          "label": "罐号识别",
          "type": "2",
          "children": [
            {
              "id": "331",
              "type": "3",
              "label": "修罐间东头"
            }
          ]
        }
      ]
    },
    {
      "id": "4",
      "label": "冷轧厂",
      "type": "1",
      "children": [
        {
          "id": "41",
          "label": "轧钢作业区",
          "type": "2",
          "children": [
            {
              "id": "411",
              "type": "3",
              "label": "轧机主控室"
            }
          ]
        },
        {
          "id": "42",
          "label": "普冷作业区",
          "type": "2",
          "children": [
            {
              "id": "421",
              "type": "3",
              "label": "原料库1"
            },
            {
              "id": "422",
              "type": "3",
              "label": "原料库2"
            }
          ]
        },
        {
          "id": "43",
          "label": "镀锌作业区",
          "type": "2",
          "children": [
            {
              "id": "431",
              "type": "3",
              "label": "生产运行检测"
            },
            {
              "id": "432",
              "type": "3",
              "label": "轧机高压室"
            }
          ]
        },
        {
          "id": "44",
          "label": "点检维护作业区",
          "type": "2",
          "children": [
            {
              "id": "441",
              "type": "3",
              "label": "退火炉4"
            },
            {
              "id": "442",
              "type": "3",
              "label": "退火炉1"
            }
          ]
        }
      ]
    }
  ]
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