"dependencies": {  "element-ui": "^2.1.0",  "vue": "^2.5.2",  "axios": "^0.16.1",  "jquery":"3.3.1",  "vue-awesome":"2.3.4",  "ztree":"3.5.24" },

plugins: [  new webpack.ProvidePlugin({   jQuery:'jquery',   $:'jquery',  }) ]

import 'jquery' import 'ztree' import 'ztree/css/metroStyle/metroStyle.css'

export default {  data() {   return {    nodeData: [{     name: "父節點1", children: [      {name: "子節點1"},      {name: "子節點2"}     ]    }],    setting:{     view: {      showLine: false     },     data: {      simpleData: {       enable: true      }     },     callback: {      onClick: this.getFileDesc     }    }   }  },  mounted(){   let nodeData = this.nodeData   $.fn.zTree.init($("#uploadtree"), this.setting, nodeData);  } }