Implementing the parabolic animation effect of adding to the shopping cart based on the jquery fly plug-in_jquery

<script src="jquery.js"></script> 
<script src="jquery.fly.min.js"></script>

<div class="container">
<div class="demo clearfix">
<div class="per">
<img src="/static/imghw/default1.png"  data-src="images/1.jpg"  class="lazy"    style="max-width:90%"  style="max-width:90%" alt="Implementing the parabolic animation effect of adding to the shopping cart based on the jquery fly plug-in_jquery"/>
<div class="title">aaa</div>
<a href="javascript:void(0);" class="button orange addcart">加入购物车</a>
</div>
<div class="per">
<img src="/static/imghw/default1.png"  data-src="images/2.jpg"  class="lazy"    style="max-width:90%"  style="max-width:90%" alt="Implementing the parabolic animation effect of adding to the shopping cart based on the jquery fly plug-in_jquery"/>
<div class="title">bbb</div>
<a href="javascript:void(0);" class="button orange addcart">加入购物车</a>
</div>
</div>
</div>
<div class="cart-sidebar">
<div class="cart">
<i id="icon-cart"></i>
<span>购物车</span>
</div>
</div>
<div id="tip">成功加入购物车！</div>
<script>
$(function() { 
var offset = $("#icon-cart").offset(); 
$(".addcart").click(function(event) { 
var img = $(this).parent().children('img').attr('src'); //获取当前点击图片链接 
var flyer = $('<img  class="flyer-img lazy"  src="/static/imghw/default1.png"  data-src="requestAnimationFrame.js"  + img + '" alt="Implementing the parabolic animation effect of adding to the shopping cart based on the jquery fly plug-in_jquery" >'); //抛物体对象 
flyer.fly({ 
start: { 
left: event.pageX,//抛物体起点横坐标 
top: event.pageY //抛物体起点纵坐标 
}, 
end: { 
left: offset.left + 10,//抛物体终点横坐标 
top: offset.top + 10, //抛物体终点纵坐标 
}, 
onEnd: function() { 
$("#tip").show().animate({width: '200px'},300).fadeOut(500);////成功加入购物车动画效果 
this.destory(); //销毁抛物体 
} 
}); 
}); 
});
<script>