个人技术分享

 <el-autocomplete v-model='challengeId' popper-class="el-autocomplete-suggestion"  :popper-append-to-body="false":fetch-suggestions="querySearchItem" @select="handleSelect"></el-autocomplete>

<style scoped lang='scss'>
::v-deep .el-autocomplete-suggestion {
  width: auto!important;
}
</style>

可根据需求对弹出框进行样式调整

::v-deep .el-autocomplete-suggestion {
    width: auto !important;
    text-align: left !important;
    margin-left: -5px;
}