<scroll-view class="box" scroll-y="{{true}}" enhanced="{{true}}" show-scrollbar="{{true}}">
      <view>123</view>
      <view>123</view>
      <view>123</view>
      <view>123</view>
      <view>123</view>
      <view>123</view>
      <view>123</view>
      <view>123</view>
      <view>2222222</view>
      <view>2222222</view>
      <view>2222222</view>
      <view>2222222</view>
      <view>2222222</view>
      <view>2222222</view>
      <view>2222222</view>
</scroll-view>
.box{
  width:100%;
  height:300rpx;
  background-color: antiquewhite;
  -webkit-overflow-scrolling: auto;
}
::-webkit-scrollbar{width:9px;height:9px;
  -webkit-overflow-scrolling: auto;}
/*定义滚动条轨道 内阴影+圆角*/
::-webkit-scrollbar-track{border-radius: 10px;background-color: rgba(194, 194, 194,0.1);}
/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb{border-radius: 10px;
  -webkit-box-shadow: inset 0 0 6px rgba(194, 194, 194,0.1);
  background-color: rgba(194, 194, 194, 1);
  -webkit-overflow-scrolling: auto;
  
}
::-webkit-scrollbar-thumb:hover{background-color:#959595;}