module.exports = {
  install(_this) {
    _this.$store.registerModule(['abc'], {
      namespaced: true,
      state: {
        rightTest: 999
      },
      actions: {
        setTest: ({commit}, val) => {
          commit('putTest', val)
        }
      },
      mutations: {
        putTest: (state, val) => {
          state.rightTest = val;
        }
      }
    })
  },
  uninstall(_this) {
    _this.$store.unregisterModule(['abc'])
  }
};

import store from '../../store';

export default {
  install() {
    store.registerModule(['abc'], {
      namespaced: true,
      state: {
        rightTest: 999
      },
      actions: {
        setTest: ({commit}, val) => {
          commit('putTest', val)
        }
      },
      mutations: {
        putTest: (state, val) => {
          state.rightTest = val;
        }
      }
    })
  },
  uninstall() {
    store.unregisterModule(['abc'])
  }
}

import abc from '../../store/test';
...
created() {
  // 挂载对应的 store
  abc.install(this);
  console.log(this.$store, 'install');
},
destroyed() {
  // 销毁对应的 store
  abc.uninstall(this);
  console.info(this.$store, 'uninstall');
},
methods: {
 test(){
  this.$store.dispatch('abc/setTest', Math.random());
 }