4-4.자바스크립트 내장객체(Array)
*달력만들기
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<script type="text/javascript">
//<![CDATA[
//배열 = 하나의 변수에 여러가지 데이터를 저장
var today = new Date();
//이달의 전체 일수를 구해보세요.
var totDay = [31,28,31,30,31,30,31,31,30,31,30,31];
var nowMonth = today.getMonth();
//document.write(totDay[nowMonth] + "<br/>");
//윤년구하기
var nowYear = today.getFullYear();
if(nowYear%4 == 0 && nowYear%100 != 0 || nowYear%400 == 0){
totDay[1]=29;
}
var total = totDay[nowMonth] //30일
var firstDay=new Date(nowYear,nowMonth,1)
//요일구하기
firstYoil=firstDay.getDay();
console.log(firstYoil);//5=(금)
//행수구하기
var totRow=Math.ceil((total+firstYoil)/7);
console.log(totRow);//
//이번달 달력 구하기
var theTable = "<table border='1' >"
theTable+="<tr>"
theTable+="<th>일</th>"
theTable+="<th>월</th>"
theTable+="<th>화</th>"
theTable+="<th>수</th>"
theTable+="<th>목</th>"
theTable+="<th>금</th>"
theTable+="<th>토</th>"
theTable+="</tr>"
var num = 1
for(var row=1; row<=totRow; row++){ // 행
theTable+="<tr>";
for(var col=1; col<=7; col++){//열
if (num > total || (row ==1&&col<=firstYoil)){
theTable+="<td></td>"
}else{
theTable+="<td>"+num+"</td>"
num++;
}
}
theTable+="</tr>";
}
theTable+="</table>"
window.onload=function(){
document.getElementById("calendar").innerHTML = theTable;
}
//]]>
</script>
</head>
<body>
<div id="calendar"></div>
</body>
</html>
