vue v-for 生成的input不能编辑修改

Question

      <el-form ref="form" :inline="true" :model="form" label-width="120px">
        <el-form-item v-for="(item,index) in form" :key="index" :label="index">
          <el-input :v-model="index" :value="form[index]" class="rbipt"></el-input>
      </el-form>

<script>
  export default {
    data() {
      return {
        form: {}
      }
    },
    created() {
      this.taskid = this.$route.query.taskid;
      this.$fetch(“....”, {}).then((res) => {
        if (res.code == 1) {
          for(let key in res.data){
            this.$set(this.form, key, res.data[key])
          }
        }
      })

    },

  }
</script>

---

感谢楼下指导，我改成了这样

        <el-form-item v-for="(item,index) in formindex" :key="item" :label="item">
          <el-input :v-model="item" :value="formvalue[index]" class="rbipt"></el-input>
        </el-form-item>

   data() {
      return {
        taskid: '',
        form: {},
        formindex:[],
        formvalue:[],
      }
    },
        .......
                  for(let key in res.data){
            // this.$set(this.form, key, res.data[key])
            this.formindex.push(key)
            this.formvalue.push(res.data[key])
          }

依然不好使，求原谅，太菜了