js怎样实现类似星级评价星级评分特效

JavaScript015

js怎样实现类似星级评价星级评分特效,第1张

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8" />

<title></title>

<style type="text/css">

.active{color: #f00}

</style>

</head>

<body>

<div class="container"><span>☆</span><span>☆</span><span>☆</span><span>☆</span><span>☆</span></div>

<script src="js/jquery_1.11.3.min.js"></script>

<script>

//点击五角星看效果

var container=$('.container')

var stars=container.find('span')

stars.click(function(){

stars.removeClass('active')

var index=$(this).index()

$('.container span:lt('+(index+1)+')').addClass('active')

})

</script>

</body>

</html>

下面是js 的评分实现,每次评分都是整数,4.2只是个平均值

用这个就可以了

SELECT avg(star) as stars FROM content where id =100

只有一个数值,就是你要的平均分,也就是4.2

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/htmlcharset=utf-8" />

<title>星级评分系统</title>

<style>

body,div,ul,li,p{margin:0padding:0}

body{color:#666font:12px/1.5 Arial}

ul{list-style-type:none}

#star{position:relativewidth:600pxmargin:10px auto}

#star ul,#star span{float:leftdisplay:inlineheight:19pxline-height:19px}

#star ul{margin:0 10px}

#star li{float:leftwidth:24pxcursor:pointertext-indent:-9999pxbackground:url(/jscss/demoimg/201206/star.png) no-repeat}

#star strong{color:#f60padding-left:10px}

#star li.on{background-position:0 -28px}

#star p{position:absolutetop:20pxwidth:159pxheight:60pxdisplay:nonebackground:url(/jscss/demoimg/201206/icon.gif) no-repeatpadding:7px 10px 0}

#star p em{color:#f60display:blockfont-style:normal}

</style>

<script type="text/javascript">

window.onload = function ()

{

var oStar = document.getElementById("star")

var aLi = oStar.getElementsByTagName("li")

var oUl = oStar.getElementsByTagName("ul")[0]

var oSpan = oStar.getElementsByTagName("span")[1]

var oP = oStar.getElementsByTagName("p")[0]

var i = iScore = iStar = 0

var aMsg = [

"很不满意|差得太离谱，与卖家描述的严重不符，非常不满",

"不满意|部分有破损，与卖家描述的不符，不满意",

"一般|质量一般，没有卖家描述的那么好",

"满意|质量不错，与卖家描述的基本一致，还是挺满意的",

"非常满意|质量非常好，与卖家描述的完全一致，非常满意"

]

for (i = 1i <= aLi.lengthi++)

{

aLi[i - 1].index = i

//鼠标移过显示分数

aLi[i - 1].onmouseover = function ()

{

fnPoint(this.index)

//浮动层显示

oP.style.display = "block"

//计算浮动层位置

oP.style.left = oUl.offsetLeft + this.index * this.offsetWidth - 104 + "px"

//匹配浮动层文字内容

oP.innerHTML = "<em><b>" + this.index + "</b>分 " + aMsg[this.index - 1].match(/(.+)\|/)[1] + "</em>" + aMsg[this.index - 1].match(/\|(.+)/)[1]

}

//鼠标离开后恢复上次评分

aLi[i - 1].onmouseout = function ()

{

fnPoint()

//关闭浮动层

oP.style.display = "none"

}

//点击后进行评分处理

aLi[i - 1].onclick = function ()

{

iStar = this.index

oP.style.display = "none"

oSpan.innerHTML = "<strong>" + (this.index) + " 分</strong>(" + aMsg[this.index - 1].match(/\|(.+)/)[1] + ")"

}

}

//评分处理

function fnPoint(iArg)

{

//分数赋值

iScore = iArg || iStar

for (i = 0i <aLi.lengthi++) aLi[i].className = i <iScore ? "on" : ""

}

}

</script>

</head>

<body>

<div id="star">

<span>点击星星就能打分</span>

<ul>

<li><a href="javascript:">1</a></li>

<li><a href="javascript:">2</a></li>

<li><a href="javascript:">3</a></li>

<li><a href="javascript:">4</a></li>

<li><a href="javascript:">5</a></li>

</ul>

<span></span>

<p></p>

</div>

</body>

</html>