效果图
// 父组件
<template>
<div>
<fatherSon :num=num :go='go' ref="name"></fatherSon>
</div>
</template>
<script>
import fatherSon from './components/father_son'
export default {
components: {
fatherSon
},
data() {
return {
num: 6
}
},
methods: {
go() {
alert('this is father')
}
},
mounted() {
console.log(this.$refs.name.msg)
}
}
</script>
// 子组件
<template>
<div>
<button @click="go">点我</button>
<p>{{ num }}</p>
</div>
</template>
<script>
export default {
props: ['num' ,'go'],
data() {
return {
msg: '子组件'
}
},
}
</script>
<style>
button {
display: inline-block;
width: 90px;
height: 60px;
font-size: 30px;
line-height: 30px;
margin-right: 20px;
}
p {
font-size: 30px;
}
</style>
效果图
// 子组件
<template>
<div>
<button @click="add">+</button>
<button @click="del">-</button>
<p>{{ num }}</p>
</div>
</template>
<script>
export default {
props: ['num' ,'go'],
methods: {
add() {
this.$emit('addNum')
},
del() {
this.$emit('delNum')
}
},
mounted() {
console.log(this.$parent.msg)
},
data() {
return {
}
},
}
</script>
<style>
button {
display: inline-block;
width: 90px;
height: 60px;
font-size: 30px;
line-height: 30px;
margin-right: 20px;
}
p {
font-size: 30px;
}
</style>
// 父组件
<template>
<div>
<fatherSon @addNum="add" @delNum="del" :num=num></fatherSon>
</div>
</template>
<script>
import fatherSon from './components/father_son'
export default {
components: {
fatherSon
},
data() {
return {
num: 6,
msg: '父组件'
}
},
methods: {
add() {
this.num--
},
del() {
this.num++
}
},
}
</script>
// 父组件
<template>
<div>
<brother></brother>
<br>
<br>
<sister></sister>
</div>
</template>
<script>
import brother from './components/brother'
import sister from './components/sister'
export default {
components: {
brother,
sister
},
data() {
return {
}
},
methods: {
},
}
</script>
// brother组件
<template>
<div>
brother组件
<button @click="go">传值</button>
</div>
</template>
<script>
import VueEvent from '../VueEvent'
export default {
methods: {
go() {
VueEvent.$emit('toSister', this.msg)
}
},
data() {
return {
msg: 'brother组件的msg'
}
},
}
</script>
<style>
div {
width: 100px;
height: 30px;
line-height: 30px;
text-align: center;
}
</style>
// sister组件
<template>
<div>
sister组件
</div>
</template>
<script>
import VueEvent from '../VueEvent'
export default {
mounted() {
VueEvent.$on('toSister', function(data) {
this.msg = data
console.log(this.msg)
})
},
data() {
return {
msg: 'sister组件'
}
},
}
</script>
<style>
div {
width: 100px;
height: 30px;
line-height: 30px;
text-align: center;
background-color: red;
}
</style>
本文地址:https://blog.csdn.net/weixin_45045593/article/details/107581000
如对本文有疑问, 点击进行留言回复!!
将uniapp打包成h5放在安卓webview中(解决uniapp引入第三方地图卡顿问题)
Vue项目判断 是移动端还是PC , 微信 , iOS , 安卓
vue用elementui写form表单时,在label里添加空格操作
解决vue net :ERR_CONNECTION_REFUSED报错问题
vue devtools怎么安装?浏览器vue调试插件vue.js devtools安装及使用教程
网友评论