vue踩坑：error 'res' is assigned a value but never used no-unused-vars

 error  in ./src/views/CategoryEdit.vue
Module Error (from ./node_modules/eslint-loader/index.js):
D:\node-vue-moba\admin\src\views\CategoryEdit.vue
  24:11  error  'res' is assigned a value but never used  no-unused-vars
✖ 1 problem (1 error, 0 warnings)
✖ 1 problem (1 error, 0 warnings)
 @ ./src/router/index.js 4:0-53 13:15-27
 @ ./src/main.js
 @ multi (webpack)-dev-server/client?http://192.168.0.121:8080/sockjs-node (webpack)/hot/dev-server.js ./src/main.js

// eslint-disable-line no-unused-vars

methods: {
  async  save(){
    const res = await this.$http.post('categories',this.model) // eslint-disable-line no-unused-vars
    this.$router.push('/categories/list')
    this.$message({
        type:'success',
        message:'保存成功'
    })
    }
},