const store = new Vuex.Store({
  state: {
    name: 'weish',
    age: 22
  },
  getters: {
    personInfo(state) {
      return `My name is ${state.name}, I am ${state.age}`;
    }
  }
  mutations: {
    SET_AGE(state, age) {
      commit(age, age);
    }
  },
  actions: {
    nameAsyn({commit}) {
      setTimeout(() => {
        commit('SET_AGE', 18);
      }, 1000);
    }
  },
  modules: {
    a: modulesA
  }
}

├── index.html
├── main.js
├── components
└── store
  ├── index.js     # 我们组装模块并导出 store 的地方
  ├── state.js     # 跟级别的 state
  ├── getters.js    # 跟级别的 getter
  ├── mutation-types.js # 根级别的mutations名称（官方推荐mutions方法名使用大写）
  ├── mutations.js   # 根级别的 mutation
  ├── actions.js    # 根级别的 action
  └── modules
    ├── m1.js     # 模块1
    └── m2.js     # 模块2

const state = {
  name: 'weish',
  age: 22
};

export default state;

export const name = (state) => {
  return state.name;
}

export const age = (state) => {
  return state.age
}

export const other = (state) => {
  return `My name is ${state.name}, I am ${state.age}.`;
}

export const SET_NAME = 'SET_NAME';
export const SET_AGE = 'SET_AGE';

import * as types from './mutation-type.js';

export default {
  [types.SET_NAME](state, name) {
    state.name = name;
  },
  [types.SET_AGE](state, age) {
    state.age = age;
  }
};

import * as types from './mutation-type.js';

export default {
  nameAsyn({commit}, {age, name}) {
    commit(types.SET_NAME, name);
    commit(types.SET_AGE, age);
  }
};

export default {
  state: {},
  getters: {},
  mutations: {},
  actions: {}
};

import vue from 'vue';
import vuex from 'vuex';
import state from './state.js';
import * as getters from './getters.js';
import mutations from './mutations.js';
import actions from './actions.js';
import m1 from './modules/m1.js';
import m2 from './modules/m2.js';
import createLogger from 'vuex/dist/logger'; // 修改日志

vue.use(vuex);

const debug = process.env.NODE_ENV !== 'production'; // 开发环境中为true，否则为false

export default new vuex.Store({
  state,
  getters,
  mutations,
  actions,
  modules: {
    m1,
    m2
  },
  plugins: debug ? [createLogger()] : [] // 开发环境下显示vuex的状态修改
});

import store from './store/index.js';

new Vue({
 el: '#app',
 store,
 render: h => h(App)
});

import {mapGetters, mapMutations, mapActions} from 'vuex';

/* 只写组件中的script部分 */
export default {
  computed: {
    ...mapGetters([
      name,
      age
    ])
  },
  methods: {
    ...mapMutations({
      setName: 'SET_NAME',
      setAge: 'SET_AGE'
    }),
    ...mapActions([
      nameAsyn
    ])
  }
};