- 当前 Bug 的表现（可附上截图）

- 预期表现

- 复现路径

- 提供一个最简复现 Demo

wxml页面：

<view class="banner">

<swiper class="bannerswipers" autoplay="{{autoplay}}" current="{{currentSwiper}}" bindchange="swiperChange" circular="{{circular}}" bindanimationfinish="changeGoodsSwip">

<block wx:for="{{imgs}}" wx:key="{{index}}">

<swiper-item>

<image src="{{item.url}}"></image>

</swiper-item>

</block>

</swiper>

<!-- 重置小圆点的样式 -->

<view class="bannerdots flex alignC flexC">

<block wx:for="{{imgs}}" wx:key="{{index}}">

<view class="bannerdot{{index == currentSwiper ? ' banneractive' : ''}}"></view>

</block>

</view>

</view>

js相关代码片段：

Page({

data: {

imgs: [

{ url: '../images/banner1.png' },

{ url: '../images/banner2.png' },

{ url: '../images/banner3.png' }

],

imgSelect: [

{ url: '../images/c.png', name: '订单开票' },

{ url: '../images/b.png', name: '扫码开票' },

{ url: '../images/a.png', name: '我的发票' }

],

currentSwiper: 0,

autoplay: true,

circular: true,

},

changeGoodsSwip: function (detail) {

if (detail.detail.source == "touch") {

//当页面卡死的时候，current的值会变成0

if (detail.detail.source == "touch") {

//防止swiper控件卡死

if (this.data.currentSwiper == 0 && this.data.preIndex>1 ) {//卡死时，重置current为正确索引

this.setData({ currentSwiper: this.data.preIndex });

}

else {//正常轮转时，记录正确页码索引

this.setData({ preIndex: this.data.currentSwiper });

}

}

}

},

swiperChange: function (e) {

this.setData({

currentSwiper: e.detail.current

})

}

})