前端实现评分功能

实现的效果如下:
前端实现评分功能_第1张图片
具体代码如下:
html部分:


<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>

CSSbu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
在这里插入图片描述

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