xiangqinxiangmu/LiangZhiYUMao/store/index.js

import Vue from 'vue'
import Vuex from 'vuex'

Vue.use(Vuex)

export default new Vuex.Store({
  state: {
    totalUnread: 0 // 全局未读数（存储所有页面需要共享的值）
  },
  mutations: {
    // 更新未读数
    SET_TOTAL_UNREAD(state, count) {
      state.totalUnread = count
    }
  },
  actions: {
    // 触发更新未读数的动作
    updateTotalUnread({ commit }, count) {
      commit('SET_TOTAL_UNREAD', count)
    }
  },
  getters: {
    // 获取全局未读数
    getTotalUnread: state => state.totalUnread
  }
})