Vue_Demo/20_脚手架/vue_code/src/components/Count.vue

<template>
  <div>
    <h1>当前求和为: {{ sum }}</h1>
    <h3>当前求和放大10倍后为: {{ bigSum }}</h3>
    <h3>我在{{ school }}，学{{ subject }}</h3>
    <h3 style="color: red">Person组件的总人数是：{{personList.length}}</h3>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="add(n)">+</button>
    <button @click="sub(n)">-</button>
    <button @click="addOdd(n)">当前求和为奇数再加</button>
    <button @click="addWait(n)">等一等再加</button>
  </div>
</template>

<script>
import {mapState, mapGetters, mapMutations, mapActions} from "vuex";

export default {
  name: "Count",
  data() {
    return {
      n: 1
    }
  },
  mounted() {
    console.log('Count', this)
  },

  methods: {
    ...mapMutations({add:'vuexAdd', sub:'vuexSub'}),  // 对象写法
    // ...mapMutations(['vuexAdd', 'vuexSub']),   //数组写法

    ...mapActions({addOdd:'vuexAddOdd', addWait:'vuexAddWait'}),
  },

  computed: {
    ...mapState(['sum', 'school', 'subject','personList']),  // 数组写法
    // ...mapState({sum: 'sum', school: 'school', subject: 'subject'}),  // 对象写法

    ...mapGetters({bigSum: 'bigSum'})
  }
}
</script>

<style>
button {
  margin-left: 5px
}
</style>