vue 组合式和选项的简单套路模板转换等笔记

默写，默写很重要，看10编不如默写一遍

<scirpt>
export default {

mounted(){
},
data(){
return {
    a:[],
b:{},
c:"a"

}
},methods:[
a(){
this.c=this.c+"aa";
console.log(this.c);
}

]
</script>

组合式

<script setup>
import {ref } from 'vue'
const a=ref([]]
const b=ref({})
const c=ref("a")
function a(){
c.value=c.value+"aa";
}
</script>

一些 bind 笔记本

<script>
  import {ref,onMounted } from 'vue'

      const  x=ref("xxx")     
      const options1=ref([])
    const  selects=ref([])
const checks=ref([])

      const options=ref([
        {
          "title":"你好",
          "value":"a"
          
        },  {
          "title":"你好1",
          "value":"b"
          
        },  {
          "title":"你好2",
          "value":"c"
          
        }
        
      ])
onMounted(()=>{})

</script>
<template>
  <input v-model="x"/>
  {{x}}
  <p>
  current check:  {{checks}}
      current options:  {{options}}
          current options1:  {{options1}}
    {{selects}}
  </p>
  <input type="checkbox" id="a" value="a1" v-model="checks"/>
    <select v-model="options1">
    <option disabled dvalue="">please choose</option>
    <option>a</option>
      <option>b</option>
      <option>c</option>
  </select>
  <select v-model="selects">
    <option disabled value="">please choose default</option>
    <option v-for="option in options" :value="option.value">
    {{option.value}}</option>
  </select>
</template>

更多对比
组合式

<script setup >
  import {ref,onMounted} from 'vue'
  onMounted(()=> {
    pElementRef.value.textContent = 'moun11111ted!'
  })
 const a=ref("define a")
 const pElementRef=ref(null)
    

</script>

<template>
  {{a}}
  <p ref="pElementRef">hello</p>
</template>

选项式

<script>
export default {
  mounted() {
    this.$refs.pElementRef.textContent = 'mounted!'
  },data(){
    return {
      a:"xx"
    }
  }
  
  
  
}
</script>

<template>
  {{a}}
  <p ref="pElementRef">hello</p>
</template>

引用其他组件
这一次 组件式要少写一些代码

import ChildComp from './ChildComp.vue'

export default {
  components: {
    ChildComp
  }
}
<template>
  <ChildComp />
</template>

<script setup>
import ChildComp from './ChildComp.vue'
</script>

<template>
  <ChildComp />
</template>