<input v-on:keyup.13="submit">

<input @keyup.enter="submit">   <!-- 缩写形式 -->

<!-- Alt + C -->
<input @keyup.alt.67="clear">
<!-- Ctrl + Click -->
<div @click.ctrl="doSomething">Do something</div>

<!-- 按下Alt + 释放C触发 -->
<input @keyup.alt.67="clear">
<!-- 按下Alt + 释放任意键触发 -->
<input @keyup.alt="other">
<!-- 按下Ctrl + enter时触发 -->
<input @keydown.ctrl.13="submit">

<input v-model="form.name" placeholder="昵称" @keyup.enter="submit">
<el-input v-model="form.name" placeholder="昵称" @keyup.enter.native="submit"></el-input>