<template>
姓:<input type="text" v-model="person.firstName">
<br>
名:<input type="text" v-model="person.lastName">
<br>
全名:<input type="text" v-model="person.fullName">
<br>
全名:{
{ person.fullName }}
</template>
<script>
import {
reactive, computed} from 'vue'
export default {
name: 'App',
setup() {
// 数据
let person = reactive({
firstName: '张',
lastName: '三'
})
// 计算属性——简写(没有考虑计算属性被修改的情况)
person.fullName = computed(() => {
return person.firstName + '-' + person.lastName
})
// 计算属性——完整写法(考虑读和写)
person.fullName = computed({
get() {
return person.firstName + '-' + person.lastName
},
set(value) {
const nameArr = value.split('-')
person.firstName = nameArr[0]
person.lastName = nameArr[1]
}
})
return {
person
}
}
}
</script>
VUE3-computed function (7)
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Origin blog.csdn.net/gty204625782/article/details/123285389
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