zepto.js问题
<style>.delete { display: none; }</style>
<ul id=items>
<li>List item 1 <span class=delete>DELETE</span></li>
<li>List item 2 <span class=delete>DELETE</span></li>
</ul>
<script>
// show delete buttons on swipe
$('#items li').swipe(function(){
$('.delete').hide()
$('.delete', this).show()
})
// delete row on tapping delete button
$('.delete').tap(function(){
$(this).parent('li').remove()
})
</script>
这是zepto.js关于触屏手机的一些事件，我想问$('.delete', this).show()这句是什么意思？this起到什么作用。 JavaScript zepto