<template>
<div>
<button @click="getSlot">getSlot</button>
<try ref="try">
<div class="hello1">hello1</div>
<div class="hello2">hello2</div>
<div class="hello3">hello3</div>
</try>
<button @click="getArc">getArc</button>
</div>
</template>
<script>
import try from './try'
export default {
components: {
try
},
methods: {
getSlot () {
this.$refs.try.getSlot()
}
}
}
</script>

<template>
<div>
<h2>我是子组件 的 标题</h2>
<slot>
只有在没有内容分发的时候我才会出现
</slot>
</div>
</template>
<script>
export default {
methods: {
getSlot () {
console.log(this.$slots)
}
}
}
</script>

this.slotChildren = []
for (let i = 0; i< this.$slots.default.length; i++) {
if (that.$slots.default[i].elm.nodeType !== 3) {
that.slotChildren.push(that.$slots.default[i]) // 获得 那些 插入的 按钮
}
}