- 小知识点：
列表末尾插入数据：
list.push("lihua")列表删除数据：
# index要删除数据的索引值，1为删除数据长度
list.splice(index,1)- 完整示例代码：
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title>
</head>
<body><div id="app"><input type="text" v-model="web.name"> <button @click="add">增加</button><ul><li v-for="(value, index) in web.name_list">{{value}} <button @click="del(index)">删除</button></li> </ul>{{web.name_list.length}} <button @click="clear">清除</button></div><script type="module">import {createApp, reactive} from './vue.esm-browser.js'// const {createApp, reactive} = VuecreateApp({// setup选项，用于设置响应式数据和方法等setup(){ const web = reactive({name:"liuhua",name_list:["zhangsan", "lisi"]})const add = () =>{web.name_list.push(web.name)}const del = (index) =>{web.name_list.splice(index,1)}const clear = () =>{web.name_list = []}return{web,add,del,clear}}}).mount("#app")// mount为挂载</script>
</body>
</html>
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