<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<script src="./vue.js"></script>
</head>
<body>
<div id="root">
<!-- <input type="text" v-model="msg">
<button @click="handleClick">submit</button>
<ul>
<li v-for="(item, index) in items" :key="index">{{item}}<span @click="deleteClick(index)">delete</span></li>
</ul> -->
</div>
<script>
Vue.component("item-list", {
template: `
<li>{{itemprops}}<span @click="handleDeleteSon(index)">delete</span></li>
`,
props: ["itemprops", "index"],
methods: {
handleDeleteSon(index) {
this.$emit("handleDeleteS", index);
}
}
});
var app = new Vue({
el: "#root",
data: {
msg: ‘‘,
items: []
},
template: `
<div>
<input type="text" v-model="msg">
<button @click="handleClick">submit</button>
<ul>
<item-list v-for="(item, index) in items" :key="index" :itemprops="item" :index="index" @handleDeleteS="deleteClick"></item-list>
</ul>
</div>
`,
methods: {
handleClick() {
this.items.push(this.msg);
this.msg = ‘‘;
},
deleteClick(index) {
this.items.splice(index, 1);
}
}
});
</script>
</body>
</html>原文：https://www.cnblogs.com/intelwisd/p/9185474.html