在一些任务游戏、贴吧管理中都会有一个签到功能，帮助大家记录登录天数，积累等级经验，这个日历签到功能是如何实现的，本文为大家进行演。

本文实例讲述了基于jquery实现日历签到功能。分享给大家供大家参考。具体如下：
运行效果截图如下：

具体代码如下：

index.html

<title>签到效果实现</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><script type="text/javascript" src="jquery-1.8.2.min.js"></script><link rel="stylesheet" type="text/css" href="sign.css"><script type="text/javascript" src="calendar.js"></script><script type="text/javascript">
$(function(){
  //ajax获取日历json数据
  var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
   calUtil.init(signList);
});
</script><div style="width:300px;height:300px;" id="calendar"></div>




<p><strong>sign.css</strong><br></p>
<div class="jb51code">
<pre class="brush:css;">
.singer_r_img{display:block;width:114px;height:52px;line-height:45px;background:url(images/sing_week.gif) right 2px no-repeat;vertical-align:middle;*margin-bottom:-10px;text-decoration:none;}
.singer_r_img:hover{background-position:right -53px;text-decoration:none;}
.singer_r_img span{margin-left:14px;font-size:16px;font-family:'Hiragino Sans GB','Microsoft YaHei',sans-serif !important;font-weight:700;color:#165379;}
.singer_r_img.current{background:url(images/sing_sing.gif) no-repeat 0 2px;border:0;text-decoration:none;}
.sign table{border-collapse: collapse;border-spacing: 0;width:100%;}
.sign th,.sign td {width: 30px;height: 40px;text-align: center;line-height: 40px;border:1px solid #e3e3e3;}
.sign th {font-size: 16px;}
.sign td {color: #404040;vertical-align: middle;}   
.sign .on {background-color:red;}
.calendar_month_next,.calendar_month_prev{width: 34px;height: 40px;cursor: pointer;background:url(images/sign_arrow.png) no-repeat;}
.calendar_month_next {float: right;background-position:-42px -6px;}
.calendar_month_span {display: inline;line-height: 40px;font-size: 16px;color: #656565;letter-spacing: 2px;font-weight: bold;}
.calendar_month_prev {float: left;background-position:-5px -6px;}
.sign_succ_calendar_title {text-align: center;width:398px;border-left:1px solid #e3e3e3;border-right:1px solid #e3e3e3;background:#fff;}
.sign_main {width: 400px;border-top:1px solid #e3e3e3;font-family: "Microsoft YaHei",SimHei;}

calendar.js

var calUtil = {
  //当前日历显示的年份
  showYear:2015,
  //当前日历显示的月份
  showMonth:1,
  //当前日历显示的天数
  showDays:1,
  eventName:"load",
  //初始化日历
  init:function(signList){
    calUtil.setMonthAndDay();
    calUtil.draw(signList);
    calUtil.bindEnvent();
  },
  draw:function(signList){
    //绑定日历
    var str = calUtil.drawCal(calUtil.showYear,calUtil.showMonth,signList);
    $("#calendar").html(str);
    //绑定日历表头
    var calendarName=calUtil.showYear+"年"+calUtil.showMonth+"月";
    $(".calendar_month_span").html(calendarName);  
  },
  //绑定事件
  bindEnvent:function(){
    //绑定上个月事件
    $(".calendar_month_prev").click(function(){
      //ajax获取日历json数据
      var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
      calUtil.eventName="prev";
      calUtil.init(signList);
    });
    //绑定下个月事件
    $(".calendar_month_next").click(function(){
      //ajax获取日历json数据
      var signList=[{"signDay":"10"},{"signDay":"11"},{"signDay":"12"},{"signDay":"13"}];
      calUtil.eventName="next";
      calUtil.init(signList);
    });
  },
  //获取当前选择的年月
  setMonthAndDay:function(){
    switch(calUtil.eventName)
    {
      case "load":
        var current = new Date();
        calUtil.showYear=current.getFullYear();
        calUtil.showMonth=current.getMonth() + 1;
        break;
      case "prev":
        var nowMonth=$(".calendar_month_span").html().split("年")[1].split("月")[0];
        calUtil.showMonth=parseInt(nowMonth)-1;
        if(calUtil.showMonth==0)
        {
            calUtil.showMonth=12;
            calUtil.showYear-=1;
        }
        break;
      case "next":
        var nowMonth=$(".calendar_month_span").html().split("年")[1].split("月")[0];
        calUtil.showMonth=parseInt(nowMonth)+1;
        if(calUtil.showMonth==13)
        {
            calUtil.showMonth=1;
            calUtil.showYear+=1;
        }
        break;
    }
  },
  getDaysInmonth : function(iMonth, iYear){
   var dPrevDate = new Date(iYear, iMonth, 0);
   return dPrevDate.getDate();
  },
  bulidCal : function(iYear, iMonth) {
   var aMonth = new Array();
   aMonth[0] = new Array(7);
   aMonth[1] = new Array(7);
   aMonth[2] = new Array(7);
   aMonth[3] = new Array(7);
   aMonth[4] = new Array(7);
   aMonth[5] = new Array(7);
   aMonth[6] = new Array(7);
   var dCalDate = new Date(iYear, iMonth - 1, 1);
   var iDayOfFirst = dCalDate.getDay();
   var iDaysInMonth = calUtil.getDaysInmonth(iMonth, iYear);
   var iVarDate = 1;
   var d, w;
   aMonth[0][0] = "日";
   aMonth[0][1] = "一";
   aMonth[0][2] = "二";
   aMonth[0][3] = "三";
   aMonth[0][4] = "四";
   aMonth[0][5] = "五";
   aMonth[0][6] = "六";
   for (d = iDayOfFirst; d ");
   htmls.push("<div class="sign_succ_calendar_title">");
   htmls.push("<div class="calendar_month_next">下月</div>");
   htmls.push("<div class="calendar_month_prev">上月</div>");
   htmls.push("<div class="calendar_month_span"></div>");
   htmls.push("</div>");
   htmls.push("<div class="sign" id="sign_cal">");
   htmls.push("<table>");
   htmls.push("<tr>");
   htmls.push("<th>" + myMonth[0][0] + "</th>");
   htmls.push("<th>" + myMonth[0][1] + "</th>");
   htmls.push("<th>" + myMonth[0][2] + "</th>");
   htmls.push("<th>" + myMonth[0][3] + "</th>");
   htmls.push("<th>" + myMonth[0][4] + "</th>");
   htmls.push("<th>" + myMonth[0][5] + "</th>");
   htmls.push("<th>" + myMonth[0][6] + "</th>");
   htmls.push("</tr>");
   var d, w;
   for (w = 1; w ");
    for (d = 0; d " + (!isNaN(myMonth[w][d]) ? myMonth[w][d] : " ") + "");
     } else {
      htmls.push("<td>" + (!isNaN(myMonth[w][d]) ? myMonth[w][d] : " ") + "</td>");
     }
    }
    htmls.push("");
   }
   htmls.push("</table>");
   htmls.push("</div>");
   htmls.push("

"); return htmls.join(''); } };

希望本文所述对大家学习javascript程序设计有所帮助。