【程序源码】
这个效果主要体现在CSS和javascript的配合上
CSS代码
复制代码 代码如下:
ul, li {margin: 0; padding: 0; border: 0;}
.shop-rating {
height: 25px;
overflow: hidden;
zoom: 1;
padding: 2px 0;
position: relative;
z-index: 999;
font:12px Arial;
color:#000;
line-height:1.2em
}
.shop-rating span {
height: 23px;
display: block;
line-height: 23px;
float: left;
}
.shop-rating span.title {
width: 125px;
text-align: right;
margin-right: 5px;
}
.shop-rating ul {
float: left;
}
.shop-rating .result {
margin-left: 20px;
padding-top: 2px;
}
.shop-rating .result span {
color: #ff6d02;
}
.rating-level,
.rating-level a {
background: url(//img.jbzj.com/demoimg/201007/o_star.png) no-repeat scroll 1000px 1000px;
}
.rating-level {
background-position: 0px 0px;
width: 120px;
height: 23px;
position: relative;
z-index: 1000;
}
.shop-rating .result em {
color: #f60;
font-family: arial;
font-weight: bold;
}
.rating-level li {
display: inline;
}
.rating-level a {
line-height: 23px;
height: 23px;
position: absolute;
top: 0px;
left: 0px;
text-indent: -999em;
*zoom: 1;
outline: none;
}
.rating-level a.one-star {
width: 20%;
z-index: 6;
}
.rating-level a.two-stars {
width: 40%;
z-index: 5;
}
.rating-level a.three-stars {
width: 60%;
z-index: 4;
}
.rating-level a.four-stars {
width: 80%;
z-index: 3;
}
.rating-level a.five-stars {
width: 100%;
z-index: 2;
}
.rating-level .current-rating, .rating-level a:hover {background-position:0 -28px}
.rating-level a.one-star:hover,.rating-level a.two-stars:hover,.rating-level a.one-star.current-rating,.rating-level a.two-stars.current-rating{background-position:0 -116px;}
.rating-level .three-stars .current-rating,.rating-level .four-stars .current-rating,.rating-level .five-stars .current-rating{background-position:0 -28px;}

HTML结构
复制代码 代码如下:
<div class="shop-rating">
<span class="title">你对我人品的评价:</span>
<ul class="rating-level" id="stars2">
<li><a href="javascript:void(0);" class="one-star" star:value="20">20</a></li>
<li><a href="javascript:void(0);" class="two-stars" star:value="40">40</a></li>
<li><a href="javascript:void(0);" class="three-stars" star:value="60">60</a></li>
<li><a href="javascript:void(0);" class="four-stars" star:value="80">80</a></li>
<li><a href="javascript:void(0);" class="five-stars" star:value="100">100</a></li>
</ul>
<span id="stars2-tips" class="result"></span>
<input type="hidden" id="stars2-input" name="b" value="" size="2" />
</div>

Javascript代码
复制代码 代码如下:
var TB = function() {
var T$ = function(id) { return document.getElementById(id) }
var T$$ = function(r, t) { return (r || document).getElementsByTagName(t) }
var Stars = function(cid, rid, hid, config) {
var lis = T$$(T$(cid), 'li'), curA;
for (var i = 0, len = lis.length; i < len; i++) {
lis[i]._val = i;
lis[i].onclick = function() {
T$(rid).innerHTML = '<em>' + (T$(hid).value = T$$(this, 'a')[0].getAttribute('star:value')) + '分</em> - ' + config.info[this._val];
curA = T$$(T$(cid), 'a')[T$(hid).value / config.step - 1];
};
lis[i].onmouseout = function() {
curA && (curA.className += config.curcss);
}
lis[i].onmouseover = function() {
curA && (curA.className = curA.className.replace(config.curcss, ''));
}
}
};
return {Stars: Stars}
}().Stars('stars2', 'stars2-tips', 'stars2-input', {
'info' : ['人品极差', '人品不咋地', '人品一般吧', '人品不错', '人品极好啊'],
'curcss': ' current-rating',
'step': 20
});

代码演示:
淘宝评分效果 ul, li {margin: 0; padding: 0; border: 0;} .shop-rating { height: 25px; overflow: hidden; zoom: 1; padding: 2px 0; position: relative; z-index: 999; font:12px Arial; color:#000; line-height:1.2em } .shop-rating span { height: 23px; display: block; line-height: 23px; float: left; } .shop-rating span.title { width: 125px; text-align: right; margin-right: 5px; } .shop-rating ul { float: left; } .shop-rating .result { margin-left: 20px; padding-top: 2px; } .shop-rating .result span { color: #ff6d02; } .rating-level, .rating-level a { background: url(//img.jbzj.com/demoimg/201007/o_star.png) no-repeat scroll 1000px 1000px; } .rating-level { background-position: 0px 0px; width: 120px; height: 23px; position: relative; z-index: 1000; } .shop-rating .result em { color: #f60; font-family: arial; font-weight: bold; } .rating-level li { display: inline; } .rating-level a { line-height: 23px; height: 23px; position: absolute; top: 0px; left: 0px; text-indent: -999em; *zoom: 1; outline: none; } .rating-level a.one-star { width: 20%; z-index: 6; } .rating-level a.two-stars { width: 40%; z-index: 5; } .rating-level a.three-stars { width: 60%; z-index: 4; } .rating-level a.four-stars { width: 80%; z-index: 3; } .rating-level a.five-stars { width: 100%; z-index: 2; } .rating-level .current-rating, .rating-level a:hover {background-position:0 -28px} .rating-level a.one-star:hover,.rating-level a.two-stars:hover,.rating-level a.one-star.current-rating,.rating-level a.two-stars.current-rating{background-position:0 -116px;} .rating-level .three-stars .current-rating,.rating-level .four-stars .current-rating,.rating-level .five-stars .current-rating{background-position:0 -28px;} 你对我人品的评价:

• 20
• 40
• 60
• 80
• 100