js商品五星好评 JavaScript实现商品评价五星好评

时间:2021-01-28 _Yoke 人气:0

一.效果展示

二.代码实现

1.html代码

<!DOCTYPE html>
<html>
 <head>
 <meta charset="utf-8">
 <title>好评</title>
 <link rel="stylesheet" type="text/css" href="../js7/css/reset.css" />
 <link rel="stylesheet" type="text/css" href="css/myTest3.css" />
 <script type="text/javascript">
  window.onload = function(){
  ul = document.getElementById('star');
  lis = ul.getElementsByTagName('li');
  for (var i = 0; i < lis.length; i++) {
   lis[i].onclick = function(){
   //被用户点击后弹框并提示分数
   //获取当前对象的对象名
   var className = this.className;//nostart
   //重新定义class,并弹出评分
   ul.className = "nostar " + className;
   var score = this.getElementsByTagName('a')[0].title;
   console.log(score);
   alert('评分：' + score);
   }
  }
  }
 </script>
 </head>
 <body>
 <ul class="nostar " id="star">
  <li class="onestar"><a title="1分"></a></li>
  <li class="twostar"><a title="2分"></a></li>
  <li class="threestar"><a title="3分"></a></li>
  <li class="fourstar"><a title="4分"></a></li>
  <li class="fivestar"><a title="5分"></a></li>
 </ul>
 </body>
</html>

2.css代码

body{
 padding: 200px 600px;
}
.nostar{
 width: 80px;
 height: 16px;
 background: url(../img/star-matrix.gif) no-repeat;
 position: relative;
}

.nostar li {
  width: 16px;
  height: 16px;
  float: left;
  
}

.nostar li a{
   display: inline-block; 
  width: 16px;
  height: 16px; 
  position: absolute;
  /* text-indent: -999px; */ 
  /* 层级关系*/
   z-index: 10; 
}
.nostar li a:hover{
  /* 将a的大小变化 width 80 */
  left: 0px;
  width: 80px;
  background: url(../img/star-matrix.gif) no-repeat;
  z-index: 5;
}
.onestar{background-position: 0 -16px;}
.twostar{background-position: 0 -32px;}
.threestar{background-position: 0 -48px;}
.fourstar{background-position: 0 -64px;}
.fivestar{background-position: 0 -80px;}


.nostar li.onestar a:hover{ background-position: 0 -96px ;}
.nostar li.twostar a:hover{ background-position: 0 -112px ;}
.nostar li.threestar a:hover{ background-position: 0 -128px ;}
.nostar li.fourstar a:hover{ background-position: 0 -144px ;}
.nostar li.fivestar a:hover{ background-position: 0 -160px ;}

3.代码下载

加载全部内容