vue 项目软键盘回车触发搜索事件

<form @submit.prevent="formSubmit" action="javascript:return true">
    <van-field
     v-model='deviceCode'
     type='tel'
     placeholder="输入设备唯一码"
     clearable
     @blur="blur"
     @keydown="search($event)"
    />
</form>
formSubmit () {
 return false
}

<form>
      <input type="text" placeholder="输入"> 
</form>

<form action="javascript:return true">
    <input type="text" placeholder="请输入">
</form>

<form action="javascript:return true">
      <input type="search" placeholder="请输入姓名">
</form>

<form action="javascript:return true">
      <input type="number" placeholder="请输入数字2">  <!--显示26键数字键盘，带有标点符号-->
</form>