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日历控件经常在平常的工作中使用到，他的实现方法以前并没有深入研究，今天写了一个简单的，知识打印出日历的基本结构，以后会添加更强大的功能。请关注后面的文章.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title> 日历 </title> <meta name="Generator" content="EditPlus"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content=""> <style type="text/css"> </style> </head> <body><divid="calendar"></div> </body></html> <script type="text/javascript"> <!--function Calendar(year,month,day){if(typeof year!="number"||typeof month !="number"){throw new Error("参数必须为整形");}this.year=year;this.month=month;this.day=day;this.daysOfMonth=[31,0,31,30,31,30,31,30,30,31,30,31]Calendar.prototype.getDaysOfMonth=function(){var value=this.daysOfMonth[this.month-1];if(value==0){if((this.year%4==0&&this.yea%100!=0)||(this.yea%400==0)) { value=29 } else { value=28 }}return value;};//获取本月的第一天是星期几Calendar.prototype.getDayBeginOfMonth=function(){var today=new Date();today.setYear(this.year);today.setMonth(this.month-1);today.setDate(1);return today.getDay();};//获取本月的最后一天是星期几Calendar.prototype.getDayEndOfMonth=function(){var today=new Date();today.setYear(this.year);today.setMonth(this.month-1);today.setDate(this.getDaysOfMonth());return today.getDay();};//获取日历数组Calendar.prototype.getCalData=function(){var days=this.getDaysOfMonth();var firstDay=this.getDayBeginOfMonth();var lastDay=this.getDayEndOfMonth();var data=new Array(firstDay+days+6-lastDay);for(var i=0,j=0;i<data.length;i++){if(i<firstDay||i>=(days+firstDay)){data[i]="";}else{j++;data[i]=j;}}return data;};}var cal=new Calendar(2012,3);var data=cal.getCalData();var calendarDom=document.getElementById("calendar");var table=document.createElement("table");for(var i=0;i<data.length;i++){if(i%7==0){table.insertRow(-1);}var curRow=table.rows[parseInt(i/7)];var curCell=document.createElement("td");curCell.innerHTML=data[i];curRow.appendChild(curCell);}calendarDom.appendChild(table); //--> </script>
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