代码成就万世基积沙镇海，梦想永在凌云意意气风发。

实现点赞动态效果

点赞的动态效果,源码如下:

============== URL.py ================

url(r'^zan.html$', views.zan),

 

============== views.py ===============

def zan(request):
    return render(request,'zan.html')

============== HTML =================

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .item{
            height:100px;
            border: 1px solid rebeccapurple;
        }
        .zan{
            height:30px;
            width: 30px;
            background-color: #252c34;
            color: white;
            position: relative;
            cursor: pointer;
        }

        .zan span{
            position: absolute;
            color: red;
            font-weight: bold;

        }
    </style>

</head>
<body>
    <div>
        <div class="item">
            <div class="zan">赞
            </div>
        </div>
        <div class="item">
             <div class="zan">赞</div>
        </div>
        <div class="item">
             <div class="zan">赞</div>
        </div>
        <div class="item">
             <div class="zan">赞</div>
        </div>
    </div>
    <script src="/static/jquery-2.1.4.min.js"></script>
    <script>
        $(function () {
            $('.zan').click(function () {
                var fz = 12;  //font-size
                var tp = 5;   //top
                var lf = 5;   //left
                var op = 1;   //opacity  透明度

                var tag = document.createElement('span');
                tag.innerHTML = '+1';
                tag.style.color = 'green';
                tag.style.fontSize = fz+'px';
                tag.style.top = tp+'px';
                tag.style.left = lf+'px';
                tag.style.opacity = op;
                $(this).append(tag);

                var obj = setInterval(function () {
                     fz += 5;  //font-size
                     tp -= 5;   //top
                     lf += 5;   //left
                     op -= 0.2;   //opacity  透明度

                    tag.style.color = 'green';
                    tag.style.fontSize = fz+'px';
                    tag.style.top = tp+'px';
                    tag.style.left = lf+'px';
                    tag.style.opacity = op;

                    if(op<0){
                        clearInterval(obj);
                        $(tag).remove();
                    }
                }, 100)

            })
        })

    </script>

</body>
</html>
 
posted @ 2017-11-03 21:57  Tomorrow1  阅读(913)  评论(0)  编辑  收藏  举报