Vuex:我如何更新这个对象中唯一的元素？

// 在Vuex的store中定义state和mutations
const store = new Vuex.Store({
  state: {
    myObject: {
      key1: 'value1',
      key2: 'value2',
      key3: 'value3'
    }
  },
  mutations: {
    updateObjectElement(state, payload) {
      state.myObject[payload.key] = payload.value;
    }
  }
});

// 在Vue组件中引入Vuex，并映射state和mutations
import { mapState, mapMutations } from 'vuex';

export default {
  computed: {
    ...mapState(['myObject'])
  },
  methods: {
    ...mapMutations(['updateObjectElement']),
    updateElement(newValue) {
      this.updateObjectElement({ key: 'key1', value: newValue });
    }
  }
}