jump-web/src/pages/nav2/Page4.vue

<template>
	<div>
		<h1>vuex 测试</h1>
		Clicked: {{ getCount }} times
		<button @click="increment">+</button>
		<button @click="decrement">-</button>
	</div>
</template>

<script>
import { mapGetters } from 'vuex'
import { mapActions } from 'vuex'

export default {
	computed: {
  	// 使用对象展开运算符将 getters 混入 computed 对象中
    ...mapGetters([
      'getCount'
      // ...
    ])
  },
   methods: {
    ...mapActions([
      'increment', // 映射 this.increment() 为 this.$store.dispatch('increment')
	  'decrement'
    ])
    //...mapActions({
    //  add: 'increment' // 映射 this.add() 为 this.$store.dispatch('increment')
    //})
  }
}
</script>