JavaScript实现简单的日历效果

2024-09-28 18:57:57

只是个简单的日历模板，各位可根据需要自行添加需要的功能。该模板更多的是提供了关于年、月、日、月初、月末、星期的获取函数。各位可根据需要自行获取。欢迎提供更简便的方式方法，互相学习提高！谢谢~~

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>日历</title>
 <style type="text/css">
 * {
  cursor: default;
 }
 div {
  overflow: hidden;
 }
 .mainArea {
  margin: 30px auto 0;
  border: 1px solid #666;
  height: 230px;
  width: 210px;
  background-color: #eee;
  font-family: 'microsoft yahei';
 }

 .top {
  height: 30px;
  background-color: #aaa;
 }

 .top span {
  cursor: default;
 }

 .top span:hover {
  background-color: red;
 }

 .top .selectFlagLeft span,
 .top .selectFlagRight span {
  display: block;
  float: left;
  line-height: 30px;
  text-align: center;
 }

 .top span.selectFlag {
  width: 50%;
 }

 .top span.selectYear {
  width: 60px;
  height: 30px;
  display: block;
  float: left;
  text-align: center;
  line-height: 30px;
  cursor: pointer;
 }

 .top span.selectMonth {
  display: block;
  height: 30px;
  margin-left: 60px;
  text-align: center;
  line-height: 30px;
  cursor: pointer;
 }

 .top .selectFlagLeft {
  float: left;
  width: 60px;
  height: 30px;
 }

 .top .selectFlagRight {
  float: right;
  width: 60px;
  height: 30px;
  margin-top: -30px;
 }

 .top .selectMiddle {
  height: 30px;
  margin-left: 60px;
  margin-right: 60px;
 }

 .dayTb {
  width: 100%;
  text-align: center;
  border-bottom: 1px solid #fff;
  ~display: none;
 }

 .dayTb thead {
  background-color: #675;
  color: #eee;
 }

 .dayTb tr {
  height: 24px;
 }

 .dayTb td {
  border: 1px solid #ddd;
  cursor: default;
  background-color: #dadada;
  font-weight: 100;
  color: rgba(102, 102, 102, 0.6);
 }
 /* .dayTb td:hover, */
 .dayTb td.currentMonth:hover,
 .dayTb td.currentMonth.currentDay:hover,
 .dayTb td.currentMonth.week:hover {
  background-color: #0fa;
 }

 .dayTb td.currentMonth {
  background-color: #c0f0f0;
  color: #60f;
 }

 .dayTb td.currentMonth.currentDay {
  color: #f06;
 }

 .dayTb td.currentMonth.week {
  color: #00a080;
 }

 .footer {
  line-height: 27px;
  text-align: right;
  padding-right: 5px;
 }
 .footer span {
  border: 1px solid #bbb;
  padding: 2px 5px;
  font-size: 12px;
 }
 .selectYears {
  height: 168px;
  width: 100%;
  background-color: #333;
  text-align: center;
  display: none;
 }
 .selectYears {
  color: #fff;
  margin: 0;
  padding: 0;
 }
 .selectYears .contentYears span {
  font-size: 16px;
  padding: 7px 0;
  width: 25%;
  display: block;
  float: left;
 }
 .selectYears span:hover {
  background-color: red;
 }
 .selectFooter span{
  padding: 0 6px;
 }
 .selectYears .returnPage {
  font-size: 12px;
  display: block;
  float: right;
  margin-top: -22px;
  margin-right: 10px;
  padding: 2px 6px;
 }
 </style>
</head>
<body>
 <div class="mainArea">
 <div class="top">
  <div class="selectFlagLeft">
  <span class="selectFlag" id="prevYear">◄</span>
  <span class="selectFlag" id="prevMonth"><</span>
  </div>
  <div class="selectMiddle">
  <span class="selectYear" id="selectYear">
  </span>
  <span class="selectMonth" id="selectMonth">
  </span>
  </div>
  <div class="selectFlagRight">
  <span class="selectFlag" id="nextMonth">></span>
  <span class="selectFlag" id="nextYear">►</span>
  </div>
 </div>
 <table class="dayTb" id="dayTb" border=0 cellspacing=0 cellpadding=0>
  <thead>
  <tr>
   <th>日</th>
   <th>一</th>
   <th>二</th>
   <th>三</th>
   <th>四</th>
   <th>五</th>
   <th>六</th>
  </tr>
  </thead>
  <tbody>
  <tr>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
  </tr>
  <tr>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
  </tr>
  <tr>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
  </tr>
  <tr>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
  </tr>
  <tr>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
  </tr>
  <tr>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
   <td></td>
  </tr>
  </tbody>
 </table>
 <div class="selectYears">
  <div class="contentYears">
  <span>2015</span>
  <span>2014</span>
  <span>2013</span>
  <span>2012</span>
  <span>2011</span>
  <span>2010</span>
  <span>2009</span>
  <span>2008</span>
  <span>2007</span>
  <span>2006</span>
  <span>2005</span>
  <span>2004</span>
  <span>2003</span>
  <span>2002</span>
  <span>2001</span>
  <span>2000</span>
  </div>
  <div class="selectFooter">
  <span>←</span>
  <span>→</span>
  </div>
  <span class="returnPage">收起</span>
 </div>
 <div class="footer">
  <span>今日</span>
  <span>清除</span>
  <span>确定</span>
  <span>返回</span>
 </div>
 </div>

 <script type="text/javascript">
 window.onload = function() {

 /**
  * 时间数组
  */
 Date.prototype.toArray = function()
 {
   var now = this;
   var dateAry = Array();
   dateAry[0] = now.getFullYear();
   dateAry[1] = (now.getMonth()+1<10?"0":"")+(now.getMonth()+1);
   dateAry[2] = (now.getDate()<10?"0":"")+now.getDate();
   dateAry[3] = (now.getHours()<10?"0":"")+now.getHours();
   dateAry[4] = (now.getMinutes()<10?"0":"")+now.getMinutes();
   dateAry[5] = (now.getSeconds()<10?"0":"")+now.getSeconds();
   dateAry[6] = now.getDay();
   return dateAry;
 };

 /**
  * 当月最大天数
  */
 function getMaxDayOfMonth(iYear, iMonth) {
  var newDate = new Date(iYear,iMonth,0);
  var dateAry = newDate.toArray();
  return parseInt(dateAry[2]);
 };

 /**
  * 当月第一天是周几
  */
 function getFirstDay(iYear, iMonth) {
  var newDate = new Date(iYear,iMonth,1);
  var dateAry = newDate.toArray();
  return parseInt(dateAry[6]);
 };

 var tdNodes = document.getElementsByTagName("td");
 var selectYearNode = document.getElementById("selectYear");
 var selectMonthNode = document.getElementById("selectMonth");
 var prevYearNode = document.getElementById("prevYear");
 var prevMonthNode = document.getElementById("prevMonth");
 var nextMonthNode = document.getElementById("nextMonth");
 var nextYearNode = document.getElementById("nextYear"); 

 var now = new Date();
 var ary = now.toArray();

 function changeYearOrMonth(iYearDiff, iMonthDiff) {
  var currentYear = parseInt(selectYearNode.innerHTML);
  var currentMonth = parseInt(selectMonthNode.innerHTML);
  var newDate = new Date(currentYear+iYearDiff,currentMonth+iMonthDiff-1,1);
  var dateAry = newDate.toArray();
  insertAllMonth(dateAry[0], dateAry[1]);
 };

 function insertAllMonth(iYear, iMonth) {
  selectYearNode.innerHTML = iYear;
  selectMonthNode.innerHTML = iMonth;

  var firstDay = getFirstDay(iYear, parseInt(iMonth)-1);
  var maxDay = getMaxDayOfMonth(iYear, iMonth);
  var prevMonthMaxDay = getMaxDayOfMonth(iYear, parseInt(iMonth)-1);

  var i = 0;
  for(i=firstDay;i>0;i--) {
  tdNodes[i-1].innerHTML = prevMonthMaxDay--;
  tdNodes[i-1].className = "";
  }
  for(i=1+firstDay;i<=maxDay+firstDay;i++) {
  tdNodes[i-1].innerHTML = i-firstDay;
  if(iYear == ary[0] && iMonth == ary[1] && i-firstDay == ary[2]) {
   tdNodes[i-1].className = "currentMonth currentDay";
  }else if(i%7 < 2){
   tdNodes[i-1].className = "currentMonth week";
  }else {
   tdNodes[i-1].className = "currentMonth";
  }
  }
  var one = 1;
  for(;i<=tdNodes.length;i++) {
  tdNodes[i-1].innerHTML = one++;
  tdNodes[i-1].className = "";
  }
 };

 insertAllMonth(ary[0], ary[1]);

 prevYearNode.onclick = function() {
  changeYearOrMonth(-1,0);
 };
 prevMonthNode.onclick = function() {
  changeYearOrMonth(0,-1);
 };
 nextMonthNode.onclick = function() {
  changeYearOrMonth(0,1);
 };
 nextYearNode.onclick = function() {
  changeYearOrMonth(1,0);
 };

 };
 </script>
</body>
</html>

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