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简易 javascript 日历
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简易 javascript 日历

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <title>Title</title>
  6.     <style>
  7.         body, ul, li {
  8.             margin: 0;
  9.             padding: 0;
  10.             box-sizing: border-box;
  11.         }
  13.         .calendar {
  14.             margin: 10px auto;
  15.             border: 1px solid;
  16.             width: 21rem;
  17.         }
  19.         .calendar > .header {
  20.             display: flex;
  21.             justify-content: space-between;
  22.             align-items: center;
  23.             margin: .5rem;
  24.         }
  26.         .calendar > .header > .middle {
  27.             text-align: center;
  28.         }
  30.         .calendar > ul {
  31.             list-style: none;
  32.             display: flex;
  33.             margin-bottom: .5rem;
  34.         }
  36.         .calendar > ul > li {
  37.             flex-basis: 3rem;
  38.             padding: .5rem;
  39.             text-align: center;
  40.         }
  42.         .calendar > ul.week {
  43.             background-color: darkgray;
  44.         }
  46.         .calendar > ul.date {
  47.             flex-wrap: wrap;
  48.         }
  50.         .calendar > ul.date > li.active {
  51.             color: red;
  52.         }
  54.     </style>
  55. </head>
  56. <body>
  58. <div class="calendar">
  59.     <div class="header">
  60.         <a class="prev" href="javascript:" title="上一月">上一月</a>
  61.         <div class="middle">
  62.             <div class="year"></div>
  63.             <div class="month"></div>
  64.         </div>
  65.         <a class="next" href="javascript:" title="下一月">下一月</a>
  66.     </div>
  67.     <ul class="week">
  68.         <li>日</li>
  69.         <li>一</li>
  70.         <li>二</li>
  71.         <li>三</li>
  72.         <li>四</li>
  73.         <li>五</li>
  74.         <li>六</li>
  75.     </ul>
  76.     <ul class="date"></ul>
  77. </div>
  79. <script>
  80.     var date = new Date();
  82.     function calendar() {
  83.         var year = date.getFullYear(),
  84.             month = date.getMonth(),
  85.             week = date.getDay(),
  86.             day = date.getDate(),
  87.             monthStr = ['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'][month],
  88.             weekDays = new Date(year, month, 1).getDay(),
  89.             days = new Date(year, month + 1, 0).getDate();
  91.         // 插入年
  92.         document.getElementsByClassName('year')[0].innerHTML = year;
  93.         // 插入月
  94.         document.getElementsByClassName('month')[0].innerHTML = monthStr;
  95.         // 插入日
  96.         var dateStr = '', style;
  97.         for (var i = 0; i < weekDays; i++) dateStr += `<li></li>`;
  99.         for (var i = 1; i <= days; i++) {
  100.             style = '';
  101.             if (i === new Date().getDate() && year === new Date().getFullYear() && month === new Date().getMonth()) {
  102.                 style = ' class="active"';
  103.             }
  104.             dateStr += `<li${style}>${i}</li>`;
  105.         }
  106.         document.getElementsByClassName('date')[0].innerHTML = dateStr;
  107.     }
  109.     window.onload = calendar;
  110.     document.getElementsByClassName('prev')[0].onclick = function () {
  111.         date.setMonth(date.getMonth() - 1);
  112.         calendar();
  113.     }
  114.     document.getElementsByClassName('next')[0].onclick = function () {
  115.         date.setMonth(date.getMonth() + 1);
  116.         calendar();
  117.     }
  118. </script>
  120. </body>
  121. </html>

javascript日历

Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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