收藏
1、父传子
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<title>父传子</title>
</head>
<body>
<div id="app">
<p>父组件</p>
<child :myname="name"></child>
</div>
<script>
Vue.component('child', {
template: `<div>
接收父组件名字：{{myname}}
</div>`,
props: ['myname'],
//属性验证
// props: {
// myname: String,
// myshow: Boolean,
// },
})
new Vue({
el: '#app',
data: {
name: 'qinhao',
},
})
</script>
</body>
</html>2、子传父
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<title>子传父</title>
</head>
<body>
<div id="app">
<p>父组件状态</p>
<child @myevent="handleEvents"></child>
</div>
<script>
Vue.component('child', {
template: `<div>
<button @click="payMoney()">click</button>
</div>`,
data() {
return {
message: '子组件状态',
}
},
methods: {
payMoney() {
this.$emit('myevent', this.message)
},
},
})
new Vue({
el: '#app',
methods: {
handleEvents(ev) {
alert(ev)
},
},
})
</script>
</body>
</html>