欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页

vue 组件之间通信

程序员文章站 2024-03-15 08:21:53
...

父传子

**父组件代码**
<template>
    <header-box :title-txt="showTitleTxt"></header-box>
</template>
<script>
    import Header from './header'
    export default {
        name: 'index',
        components: {
            'header-box': Header
        },
        data () {
            return {
                showTitleTxt: '首页'
            }
        }
    }
</script>

  

**子组件代码**
<template>
    <header>
        {{thisTitleTxt}}
    </header>
</template>
<script>
    export default {
        name: 'header-box',
        props: {
            titleTxt: String
        },
        data () {
            return {
                thisTitleTxt: this.titleTxt
            }
        }
    }
</script>

子传父1

**子组件代码**
<template>
    <header>
       <button @click='anniu'></button>
    </header>
</template>
<script>
    export default {
        name: 'header-box',
        props: {
            titleTxt: String
        },
        data () {
            return {
                
            }
        },
                   methods: {
                          anniu(){
                                 this.titleTxt('子组件传来的值')
                          },
                   },
    }
</script>

  

**父组件代码**
<template>
    <header-box :title-txt="showTitleTxt"></header-box>
</template>
<script>
    import Header from './header'
    export default {
        name: 'index',
        components: {
            'header-box': Header
        },
        data () {
            return {
                showTitleTxt: '首页'
            }
        },
        methods:{
             showTitleTxt(a){
                console.log(a) //子组件传来的值
            },
    
        }
    }
</script>        

子传父2

**子组件代码**
<template>
    <button @click="incrementCounter">{{counter}}</button>
</template>
<script>
    export default {
        name: 'button-counter',
        data () {
            return {
                counter: 0
            }
        },
        metheds: {
            incrementCounter () {
                this.$emit('increment','子组件传来的值')
                this.counter++
            }
        }
    }
</script>
*通过$on,$emit*
**父组件代码**
<template>
    <div id="counter-event-example">
      <p>{{ total }}</p>
      <button-counter v-on:increment="incrementTotal"></button-counter>
</div>
</template>
<script>
    import ButtonCounter from './buttonCounter'
    export default {
        name: 'index',
        components: {
            'button-conuter': ButtonCounter
        },
        data () {
            return {
                total: 0
            }
        },
        methods: {
            incrementTotal (a) {
                console.log(a) //子组件传来的值
                this.total++
            }
        }
    }
</script>