我使用了一种不安全的方法来使用createSlice更新状态。我想在分派过程中发送的一个json对象中动态地更新给定键值对的状态。现在我正在循环[key，value]对并逐个更新它们。这不是很好。有没有一种方法可以基于{... state.user，action.payload }这样的浅副本来设置状态。对我来说，直接复制状态是不起作用的。看起来我可能遗漏了一些关于如何使用它的东西，但是我在文档中找不到任何关于它的东西。任何帮助都将不胜感激。

import { createSlice } from '@reduxjs/toolkit'

export const userSlice = createSlice({
  name: 'user',
  initialState: {
    user: {},
  },
  reducers: {
    set_user: (state, action) => {
      // Redux Toolkit allows us to write mutating logic in reducers. It
      // doesn't actually mutate the state because it uses the Immer library,
      // which detects changes to a draft state and produces a brand new
      // immutable state based off those changes
      state.user = action.payload
    },
    update_user: (state, action) => {
      console.log(action.payload)
      //eg {x: 'y', z: '1'}
      for (const [key, value] of Object.entries(action.payload)) {
        console.log(key)
        console.log(value)
        state.user[key] = value
      }
    },
})