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  • js自定义日历

    https://www.cnblogs.com/zimengxiyu/p/12568477.html

    js日历插件

    实现思路:获取每个月的第一天是星期几,然后把前面的天数填充为空,在获取每个月有多少天,循环填充,判断并给给当前时间添加单独样式,点击上一月,和下一月时改变月份。

    获取当前月第一天:返回值是 0(周日) 到 6(周六) 之间的一个整数

    var date = new Date();
    var y=date.getFullYear();
    var m=date.getMonth();
    new Date(y,m,1).getDay();
    获取当前月有多少天

    var date = new Date();
    var y=date.getFullYear();
    var m=date.getMonth();
    new Date(y,m+1,-1).getDate()+1;
    最后点击上一月,下一月月份加一或减一,在执行封装的日历函数。

    全部代码:

    复制代码

    <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> * { margin: 0; padding: 0; }
        body {
            background: #2c3e50;
        }
    
        .calendar {
             400px;
            margin: 50px auto;
        }
    
        .calendar-tip {
            font-size: 16px;
            text-align: center;
            color: #fff;
        }
    
        .prev {
            float: left;
            cursor: pointer;
        }
    
        .next {
            float: right;
            cursor: pointer;
        }
    
        .calendar-month {
            text-align: center;
            margin: 10px 0;
            color: #fff;
        }
    
        ul {
            list-style: none;
            display: flex;
        }
    
        li {
             57px;
            text-align: center;
            height: 55px;
            line-height: 55px;
            font-size: 16px;
            color: #fff;
        }
    
        .calendar-day {
            display: flex;
        }
    
        .calendar-day span {
            flex: 1;
            color: #fff;
            text-align: center;
            height: 40px;
            line-height: 40px;
    
        }
    
        .calendar-data {
            display: flex;
            flex-wrap: wrap;
        }
    
        li {
             57px;
            cursor: pointer;
        }
    
        li:hover {
            background: #2d3436;
        }
    
        .calendar-data .on {
            color: #d63031;
        }
    </style>
    
    </head> <body> <div class="calendar"> <div class="calendar-tip"> <span class="prev">上一月</span> <em id="year">2022年</em> <span class="next">下一月</span> </div> <div class="calendar-month">五月</div> <div class="calendar-day"> <span>日</span> <span>一</span> <span>二</span> <span>三</span> <span>四</span> <span>五</span> <span>六</span> </div> <ul class="calendar-data"> <li>1</li> <li>1</li> <li>1</li> <li>1</li> <li>1</li> <li>1</li> <li>1</li> </ul> </div> <script> var date = new Date(); var year = document.querySelector("#year"); var month = document.querySelector(".calendar-month"); var calendarData = document.querySelector(".calendar-data"); var prev = document.querySelector(".prev"); var next = document.querySelector(".next"); var monthArr = ["一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"]; var y,m,day,d,html,today; calendar();
        function calendar() {
            y = date.getFullYear();
            year.innerHTML = y + "年";
    
            m = date.getMonth();
            month.innerHTML = monthArr[m];
            day = new Date(y, m, 1).getDay(); //获取每个月第一天是周几
            d = new Date(y, m + 1, -1).getDate() + 1; //获取多少天
            html = "";
    
            //把每个月第一天之前的时间填充为空
            for (var i = 0; i < day; i++) {
                html += "<li> </li>";
            }
    
            for (var j = 1; j <= d; j++) {
                if (y==new Date().getFullYear() && m==new Date().getMonth() && j== date.getDate()) {
                    html += "<li class='on'>" + j + "</li>";
                } else {
                    html += "<li>" + j + "</li>";
                }
    
            }
            calendarData.innerHTML = html;
        }
    
        prev.onclick = function () {
            date.setMonth(date.getMonth() - 1);
            calendar();
        }
    
        next.onclick = function () {
            date.setMonth(date.getMonth() + 1);
            calendar();
        }
    </script>
    
    </body> 复制代码 效果:

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  • 原文地址:https://www.cnblogs.com/ellafive/p/13734724.html
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