回车触发事件
<el-input
v-model="state.search.keyword"
size="large"
style="max-width: 450px"
placeholder="请输入：ID / 姓名"
:change="doEnter"
@keydown.enter.native="doSearch"
>
<template #append>
<el-button icon="Search" @click="doSearch"></el-button>
</template>
</el-input>