<view class="section section_gap">
 <view class="section__title">type="switch"</view>
 <view class="body-view">
 <switch checked="{{switch1Checked}}" bindchange="switch1Change"/>
 </view>
</view>

<view class="section section_gap">
 <view class="section__title">type="checkbox"</view>
 <view class="body-view">
 <switch type="checkbox" checked="{{switch2Checked}}" bindchange="switch2Change"/>
 </view>
</view>

var pageData = {
 data: {
 switch1Checked: true,
 switch2Checked: false,
 switch1Style: '',
 switch2Style: 'text-decoration: line-through'
 }
}
for(var i = 1; i <= 2; ++i) {
 (function(index) {
 pageData[`switch${index}Change`] = function(e) {
 console.log(`switch${index}发生change事件，携带值为`, e.detail.value)
 var obj = {}
 obj[`switch${index}Checked`] = e.detail.value
 this.setData(obj)
 obj = {}
 obj[`switch${index}Style`] = e.detail.value ? '' : 'text-decoration: line-through'
 this.setData(obj)
 }
 })(i)
}
Page(pageData)