Dbqb_Study/吴光慧学习笔记/11.5/Count.txt

<template>
  <div class="count">
    <h2>当前求和为：{{ countStore.sum }}</h2>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="add">加</button>
    <button @click="minus">减</button>
  </div>
</template>

<script setup lang="ts" name="Count">
  import { ref,reactive } from "vue";
  import {useCountStore} from '@/store/count'

  const countStore = useCountStore()

  // 以下两种方式都可以拿到state中的数据
  // console.log('@@@',countStore.sum)
  // console.log('@@@',countStore.$state.sum)

/*   let obj = reactive({
    a:1,
    b:2,
    c:ref(3)
  })
  let x = ref(9)
  console.log(obj.a)
  console.log(obj.b)
  console.log(obj.c) */


  // 数据
  let n = ref(1) // 用户选择的数字
  // 方法
  function add(){
    //第一种修改方式
    // countStore.sum += 1

    //第二种修改方式
    // countStore.$patch({
    //   sum:999,
    //   school:'xxx',
    //   address:'yyy'
    // })
    
    //第三种修改方式
    countStore.increment(n.value)
  }
  
  function minus(){
    countStore.decrement(n.value)
    
  }
</script>

<style scoped>
  .count {
    background-color: skyblue;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 0 10px;
  }
  select,button {
    margin: 0 5px;
    height: 25px;
  }
</style>