Vue键盘事件为何要加上native？

Question

<template><el-form :model="ruleForm2" :rules="rules2" ref="ruleForm2" label-position="left" label-width="0px"         class="demo-ruleForm login-container" >    <h3 class="title">系统登录</h3>    <el-form-item prop="account">        <el-input type="text" v-model="ruleForm2.account" auto-complete="off" placeholder="账号"></el-input>    </el-form-item>    <el-form-item prop="password">        <el-input type="password" v-model="ruleForm2.password" auto-complete="off" placeholder="密码" @keyup.enter.native="handleSubmit2"></el-input>    </el-form-item>    <el-form-item style="width:100%;">        <el-button type="primary" style="width:100%;"  @click.native.prevent="handleSubmit2" :loading="logining" >登录        </el-button>    </el-form-item></el-form></template>@keyup.enter这里必须加上 .native 才能生效.

Answer 1

因为你@keyup.enter是写在一个封装好的组件上 
如果你写在一个input上就不需要.native 
至于为什么，请参考vue文档