纯js日历插件

成品的效果图

1.HTML文件


<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>中兴城-考勤信息</title>
    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
    <meta name="keywords" content="中兴城">
    <meta name="description" content="中兴城">
    <meta name="format-detection" content="telephone=no,email=no,adress=no">
    <!-- 防止UC浏览器字体放大 -->
    <meta name="wap-font-scale" content="no">
    <!-- 针对手持设备优化,主要是针对一些老的不识别viewport的浏览器,比如黑莓 -->
    <meta name="HandheldFriendly" content="true">
    <!-- 微软的老式浏览器 -->
    <meta name="MobileOptimized" content="320">
    <!-- uc强制竖屏 -->
    <meta name="screen-orientation" content="portrait">
    <!-- QQ强制竖屏 -->
    <meta name="x5-orientation" content="portrait">
    <!-- UC强制全屏 -->
    <meta name="full-screen" content="yes">
    <!-- QQ强制全屏 -->
    <meta name="x5-fullscreen" content="true">
    <!-- UC应用模式 -->
    <meta name="browsermode" content="application">
    <!-- QQ应用模式 -->
    <meta name="x5-page-mode" content="app">
    <!-- windows phone 点击无高光 -->
    <meta name="msapplication-tap-highlight" content="no">
    <!-- 适应移动端end -->
    <link href="https://cdn.bootcss.com/normalize/7.0.0/normalize.min.css" rel="stylesheet">
    <link rel="stylesheet" href="css/kaoqin.css">
    <link rel="stylesheet" href="css/common.css">
</head>

<body>
    <!-- 主内容 -->
    <div class="container">
        <!-- 分类 -->
        <div class="banner_kq">
            <div class="control_">
                <a href="javascript:;" class="preMonth"><img src="images/to_left_swiper_icon.png" alt=""></a>
                <span class="date_">2017年12月</span>
                <a href="javascript:;" class="nextMonth"><img src="images/to_right_swiper_icon.png" alt=""></a>
            </div>
            <div class="show_info">
                <div class="flex">
                    <div class="item">
                        <div class="circle"><span></span>27</div>应出勤</div>
                    <div class="item">
                        <div class="circle"><span></span>26</div>实际出勤</div>
                    <div class="item">
                        <div class="circle"><span></span>2</div>迟到</div>
                    <div class="item">
                        <div class="circle"><span></span>1</div>早退</div>
                </div>
            </div>
        </div>
        <ul class="calendT">
            <!-- late:迟到 error:早退  errorLate:迟到及早退 today: 今天-->
            <li>
                <span>周一</span>
                <span>周二</span>
                <span>周三</span>
                <span>周四</span>
                <span>周五</span>
                <span>周六</span>
                <span>周七</span>
            </li>
        </ul>
        <ul class="calendC">
            <li>
                <span></span>
                <span></span>
                <span></span>
                <span></span>
                <span>1</span>
                <span>2</span>
                <span>3</span>
            </li>
            <li>
                <span>4</span>
                <span>5</span>
                <span>6</span>
                <span>7</span>
                <span class="late">8</span>
                <span>9</span>
                <span>10</span>
            </li>
            <li>
                <span class="error">11</span>
                <span>12</span>
                <span class="today">13</span>
                <span>14</span>
                <span>15</span>
                <span>16</span>
                <span>17</span>
            </li>
            <li>
                <span>18</span>
                <span class="errorLate">19</span>
                <span>20</span>
                <span>21</span>
                <span>22</span>
                <span>23</span>
                <span>24</span>
            </li>
            <li>
                <span>25</span>
                <span>26</span>
                <span>27</span>
                <span>28</span>
                <span>29</span>
                <span>30</span>
                <span>31</span>
            </li>
            <li>
                <span></span>
                <span></span>
                <span></span>
                <span></span>
                <span></span>
                <span></span>
                <span></span>
            </li>
        </ul>
        <div class="show_tips">
            <span>今日</span><span>休息日</span><span>迟到/早退</span>
        </div>
    </div>
    <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
    <script src="js/kaoqin.js"></script>
</body>

</html>

2.CSS文件

ul {
    list-style: none;
    padding: 0;
    margin: 0;
    background: #fff;
}
.calendT {}
.calendT li {
    color: #999999;
    font-size: .13rem;
    text-align: center;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    line-height: .4rem;
    border-bottom: 1px solid #eee;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
}
.calendT li span{-webkit-box-flex: 1;-ms-flex-positive: 1;flex-grow: 1;}
.calendC {}
.calendC li {
    text-align: center;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    font-size: .13rem;
    color: #666666;
    line-height: calc(100vw/7);
    height: calc(100vw/7);
}
.calendC li span{
	position: relative;
     calc(100vw/7);
    border-right: 1px solid #eee;
    border-bottom: 1px solid #eee;
}
.calendC li span:nth-child(6),
.calendC li span:nth-child(7){
	background: #f3efdd;
}
.calendC span::before{
	position: absolute;
	top: .02rem;
	left: .02rem;
	line-height: 1;
}
.error,.late,.errorLate {
	background:#ebb5b5; 
}
.error::before {
	content: "退";
	font-size: .12rem;
	color: #bf1515;
}
.late::before {
	content: "迟";
	font-size: .12rem;
	color: #bf1515;
}
.errorLate::before {
	content: "迟/退";
	font-size: .12rem;
	color: #bf1515;
	position: absolute;
}
.today {
	background: #ccd3f3;
}

3.js文件

function Dragon() {
    this.init();
}
Dragon.prototype = {
    nowDate: null,
    showDate: new Date(),
    init: function(date) {
        var date = date || this.showDate;
        var year = date.getFullYear() + "-" + ((date.getMonth() + 1) > 9 ? (date.getMonth() + 1) : "0" + (date.getDate() + 1)) + "-" + ((date.getDate()) > 9 ? (date.getDate()) : "0" + (date.getDate()));
        var currentDays = this.getMonthDays(date);
        var prevDays = this.getPrevMonthDays();
        var nextDays = this.getNextMonthDays();
        var firstDay = currentDays.firstDay;
        var indexRow = 0;
        html = "<li>";
        for (let i = 1; i < firstDay; i++) {
            html += "<span></span>";
        }
        for (let i = 1; i <= currentDays.days; i++) {
            html += "<span>" + i + "</span>";
            if ((i + firstDay - 1) % 7 == 0) {
                html += "</li><li>";
                indexRow++;
            }
        }
        if (indexRow == 4) {
            var cols = 7 - (firstDay + currentDays.days - 1) % 7;
            for (let i = 1; i <= cols; i++) {
                html += "<span></span>";
            }
            html += "</li><li><span></span><span></span><span></span><span></span><span></span><span></span><span></span></li>";
        }
        if (indexRow == 5) {
            var cols = 7 - (firstDay + currentDays.days - 1) % 7;
            for (let i = 1; i <= cols; i++) {
                html += "<span></span>";
            }
            html += "</li>";
        }
        document.querySelector(".calendC").innerHTML = html;
        console.log(year);
    },
    getMonthDays: function(date, str) { //获取传入时间当前的月份有多少天(不传时间就是获取当前月份的天数)
        var str = str === undefined ? 0 : str;
        var date = date || new Date();
        if (str == 0) {
            this.showDate = date;
        }
        date.setDate(1);
        var firstDay = date.getDay();
        var monthStart = date.getTime();
        date.setMonth(date.getMonth() + 1);
        var monthEnd = date.getTime();
        var obj = {};
        var days = Math.ceil((monthEnd - monthStart) / (24 * 60 * 60 * 1000));
        date.setMonth(date.getMonth() - 1)
        obj = {
            days: days,
            firstDay: firstDay == 0 ? 7 : firstDay
        }
        return obj;
    },
    getCurrentMonthDays: function() { //获取当前月份的天数
        var date = new Date();
        if (this.nowDate == null) {
            this.nowDate = date;
        }
        date.setDate(1);
        var firstDay = date.getDay();
        var monthStart = date.getTime();
        date.setMonth(date.getMonth() + 1);
        var monthEnd = date.getTime();
        var obj = {};
        var days = Math.ceil((monthEnd - monthStart) / (24 * 60 * 60 * 1000));
        date.setMonth(date.getMonth() - 1);
        obj = {
            days: days,
            firstDay: firstDay == 0 ? 7 : firstDay
        }
        return obj;
    },
    getNextMonthDays: function() { //获取下一个月的天数
        var date = this.showDate;
        date.setMonth(date.getMonth() + 1);
        this.getMonthDays(date, 1);
        date.setMonth(date.getMonth() - 1);
    },
    getPrevMonthDays: function() { //获取上一个月的天数
        var date = this.showDate;
        date.setMonth(date.getMonth() - 1);
        this.getMonthDays(date, -1);
        date.setMonth(date.getMonth() + 1);
    },
    nextMonth: function() { //显示下一个月的时间
        var date = this.showDate;
        date.setMonth(date.getMonth() + 1);
        this.init(date);
    },
    prevMonth: function() { //显示上一个月的时间
        var date = this.showDate;
        date.setMonth(date.getMonth() - 1);
        this.init(date);
    }
}
var calend = new Dragon();
$(".preMonth").on("click", function() {
    calend.prevMonth();
})
$(".nextMonth").on("click", function() {
    calend.nextMonth();
})
原文地址:https://www.cnblogs.com/abcode/p/8073952.html