javascript实现评分功能
作者：Jeslie-He
这篇文章主要为大家详细介绍了javascript实现评分功能，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了js实现评分功能的具体代码，供大家参考，具体内容如下
实现的效果如下：
具体代码如下：
html部分：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <link rel="stylesheet" href="./index.css" > <title>评分</title> </head> <body> <div id="starRating"> <p class="photo"> <span><i class="high"></i><i class="nohigh"></i></span> <span><i class="high"></i><i class="nohigh"></i></span> <span><i class="high"></i><i class="nohigh"></i></span> <span><i class="high"></i><i class="nohigh"></i></span> <span><i class="high"></i><i class="nohigh"></i></span> </p> <p class="starNum">0.0分</p> <div class="bottoms"> <a class="garyBtn cancleStar">取消评分</a><a class="blueBtn sureStar">确认</a> </div> </div> <script src="./jquery.js"></script> <script src="./index.js"></script> </body> </html>
CSS部分：
#starRating .photo span{
position: relative;
display: inline-block;
width: 44px;
height: 42px;
overflow: hidden;
margin-right: 23px;
cursor: pointer;
/* border: 1px solid black; */
}
#starRating .photo span:last-child{
margin-right: 0px;
}
#starRating .photo span .nohigh{
position: absolute;
width: 44px;
height: 42px;
top: 0;
left: 0;
background: url(./star.png);
}
#starRating .photo span .high {
position: absolute;
width: 44px;
height: 42px;
top: 0;
left: 0;
background: url(./star1.png);
}
#starRating .starNum {
font-size: 26px;
color: #de4414;
margin-top: 4px;
margin-bottom: 10px;
}
#starRating .photo{
margin-top: 30px;
}
#starRating .bottoms a {
margin-bottom: 0;
}
#starRating .bottoms .garyBtn {
margin-right: 57px!important;
}
#starRating .bottoms a {
width: 130px;
height: 35px;
line-height: 35px;
border-radius: 3px;
display: inline-block;
font-size: 16px;
transition: all 0.2s linear;
margin: 16px 0 22px;
text-align: center;
cursor: pointer;
}
.garyBtn {
margin-right: 60px!important;
background-color: #e1e1e1;
color: #999999;
}
.blueBtn {
background-color: #1968b1;
color: #fff;
}
.blueBtn:hover {
background: #0e73d0;
}
index.js
$(function () {
//评分
var starRating = 0;
//鼠标移入
$('.photo span').on('mouseenter', function () {
var index = $(this).index() + 1;
$(this).prevAll().find('.high').css('z-index', 1);
$(this).find('.high').css('z-index', 1);
$(this).nextAll().find('.high').css('z-index', 0);
$('.starNum').html((index * 2).toFixed(1) + '分');
});
//鼠标离开
$('.photo').on('mouseleave', function () {
$(this).find('.high').css('z-index', 0);
var count = starRating / 2;
console.log(count);
if (count == 5) {
$('.photo span').find('.high').css('z-index', 1);
} else {
$('.photo span').eq(count).prevAll().find('.high').css('z-index', 1);
}
$('.starNum').html(starRating.toFixed(1) + '分')
}),
//点击
$('.photo span').on('click', function () {
var index = $(this).index() + 1;
$(this).prevAll().find('.high').css('z-index', 1)
$(this).find('.high').css('z-index', 1);
starRating = index * 2;
$('.starNum').html(starRating.toFixed(1) + '分');
//alert('评分：' + (starRating.toFixed(1) + '分'))
});
//取消评分
$('.cancleStar').on('click',function () {
starRating = 0;
$('.photo span').find('.high').css('z-index',0);
$('.starNum').html(starRating.toFixed(1)+'分');
});
//确定评分
$('.sureStar').on('click',function () {
if(starRating===0) {
alert('最低一颗星！');
} else {
alert('评分：'+(starRating.toFixed(1)+'分'))
}
})
})
图片stat.png和stat1.png分别如下
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。