element只提供了复合型输入框，复合型下拉框的效果，我是通过button与el-select拼接形成的，代码如下：

<div class="form">
  <button class="btn">是否需要审核</button>
  <el-select v-model="formData.value1" placeholder="请选择">
    <el-option
      v-for="item in options"
      :key="item.value"
      :label="item.label"
      :value="item.value">
    </el-option>
  </el-select>
</div>

.form{
  display: flex;
  justify-content: start;
  align-items: center;
  .btn{
    height: 36px;
    line-height: 36px;
    border: 1px solid #DCDFE6;
    background-color: #fafafa;
    padding: 0 30px;
    color: #525050;
    border-right: none;
  }
  ::v-deep.el-input__inner{
    border-radius: 0;
  }
}

        效果图如下：