自封微信小程序选项卡Tab功能，支持多个滑动切换

1.静态的支持两个切换

	<view  class="option-box">
				<view class="swiper-tab"> 
          <view class="swiper-tab-list {
  {currentTab==0 ? 'on' : 'off'}}" data-current="0" bindtap="swichNav">互联网医院
          </view> 
          <view class="swiper-tab-list {
  {currentTab==1 ? 'on' : 'off'}}" data-current="1" bindtap="swichNav">患者便利服务</view> 
        </view > 
        <swiper current="{
  {currentTab}}" class="swiper-box" duration="300" style="height:{
  {winHeight - 31}}px;" bindchange="bindChange"> 
            <!-- 互联网医院 -->
                <swiper-item> 
                  <view style="width: 100%;display: flex;justify-content: space-between;" class="grid-box">
                     <view class="line-box" bindtap="gotoYh">
                        <image src="/assets/img/home/sbbx-new.png" mode="heightFix" style="width: 45rpx;height: 45rpx;vertical-align:top;" />
                        <view class="grid-title">上门护理</view>
                     </view>
                     <view class="line-box" bindtap="gotoWebs">
                        <image src="/assets/img/home/ymp-new.png" mode="heightFix" style="width: 45rpx;height: 45rpx;vertical-align:top;" />
                        <view class="grid-title">医名片</view>
                     </view>
                     <view class="line-box" bindtap="gotoIncharge">
                      <image src="/assets/img/home/zyfcz-new.png" mode="heightFix" style="width:  45rpx;height: 45rpx;vertical-align:top;" />
                        <view class="grid-title&