VUE饿了么树形控件添加增删改功能的示例代码(5)

//el-tree component
mounted(){
 this.initExpand()
},
methods: {
 initExpand(){
  //isLoadingTree用意也是在此
  this.setTree.map((a) => {
   this.defaultExpandKeys.push(a.id)
  });
  this.isLoadingTree = true;
 },
}