btn/src/store/index.js

A Vue.js project

import Vue from 'vue'
import vuex from 'vuex'
Vue.use(vuex);
export default new vuex.Store({
  state: {//state
    show: false,
    count: 1,
    active: null,
  },
  mutations: {
    switch_dialog(state,value) {//这里的state对应着上面这个state,value为你想传的参数
      state.show = state.show ? false : true;
      state.count++;
      state.newValue=state.count+value;
      //你还可以在这里执行其他的操作改变state
    },
  },
  actions: {
    switch({commit},num) {//{commit}为简写，num为你想传的参数
      commit('switch_dialog',num-1);
    }
  },
  getters:{
    notShow(state){//这里的state对应着上面这个state
      return !state.show;
    }
  }
})