<a-tree
        showLine
        checkable
        v-model='businessSelectedRowKeys'
        @check="onBusinessSelectChange"
        :treeData='businessData'
        :checkedKeys="businessSelectedRowKeys"
        :autoExpandParent="true"
        >
        </a-tree>

---------------data中-------------------

 

data(){
  return{
      test: [],
      businessData: [],
      businessSelectedRowKeys: [],
      allSelectedNodes: [],
  }
}

------------------methods---------------------

 

  onBusinessSelectChange(selectedKeys, info) {
      // console.log('selectedKeys changed: ', selectedKeys);
      // console.log('info changed: ', info);

      // 已勾选子节点以及半勾选状态的父节点
      this.allSelectedNodes = selectedKeys.concat(info.halfCheckedKeys);
      this.businessSelectedRowKeys = selectedKeys;
    },

 

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