1.实现效果

2.页面代码 

 <el-time-picker
     v-model="formValidate.flightDuration"
     value-format="mm:ss"
     format="mm:ss"
     :picker-options="{
       selectableRange: '00:00:00 - 00:59:59'
     }"
     popper-class="noneMinute"
     placeholder="飞行时长">
  </el-time-picker>

3.修改样式

<style lang='scss'>
    //这个应该是隐藏小时的代码
    .noneMinute {
      .el-scrollbar:nth-of-type(1) {
        display: none;
      }
    //调整样式
    .el-time-spinner {
      width: 150%;
      white-space: nowrap;
    }
}
</style>