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자바스크립트(Javascript) 기초 #1 - 성적표 만들기
<구성>
학생ID, 학생이름, 국어, 영어, 수학, 학생총점, 학생 평균
학급총점
학급평균
학급 누적 총점
학급 누적 평균
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<html>
<head>
<meta charset='utf-8'>
<script>
// Student variables
var studentId = new Array();
var studentName = new Array();
var kor = new Array();
var eng = new Array();
var mat = new Array();
var studentTot = new Array();
var studentAvg = new Array();
// Class variables
var classKor = new Array();
var classEng = new Array();
var classMat = new Array();
var classTot = new Array();
var classAvg = new Array();
// Class variables
var classTotKor = 0;
var classTotEng = 0;
var classTotMat = 0;
var classTotStudent = 0;
var classAvgStudent = 0;
// Cumulative variables
var aggreKor = 0;
var aggreEng = 0;
var aggreMat = 0;
var aggreTot = 0;
var aggreAvg = 0;
// Other variables
var studentAll = 1000;
var studentClass = 30;
var classMax = Math.ceil(studentAll / studentClass); // Total classes
// 0 front of number
function leadZero(num, n) {
var leadZero = "";
num = num.toString();
if (num.length < n) { for (var i = 0; i < n - num.length; i++) leadZero += "0"; }
return leadZero + num;
}
// Print date
function date() {
var d = new Date();
return (d.getFullYear() + "-" + leadZero((d.getMonth() + 1), 2) + "-" + leadZero(d.getDate(), 2)
+ " " + leadZero(d.getHours(), 2) + ":" + leadZero(d.getMinutes(), 2) + ":" + leadZero(d.getSeconds(), 2));
}
// Student loop variables
var countStart = 0;
var countEnd = studentClass;
// Student score
for (var i = 0; i < studentAll; i++) {
kor[i] = Math.ceil(Math.random() * 100);
eng[i] = Math.ceil(Math.random() * 100);
mat[i] = Math.ceil(Math.random() * 100);
studentTot[i] = kor[i] + eng[i] + mat[i];
studentAvg[i] = studentTot[i] / 3;
}
</script>
</head>
<body>
<table border="1" cellspacing=0>
<script>
// Table
// Header
for (var p = 0; p < classMax; p++) {
document.write("<tr><td colspan='7' align='center'>Report Card</td></tr>");
document.write("<tr>");
document.write("<td colspan='2'>PAGE : " + (p + 1) + "</td>");
document.write("<td colspan='5' align='right'>Output Date : " + date() + "</td>");
document.write("</tr>");
document.write("<tr>");
document.write("<td align='center'>ID</td>");
document.write("<td align='center'>Name</td>");
document.write("<td align='center'>Kor</td>");
document.write("<td align='center'>Eng</td>");
document.write("<td align='center'>Math</td>");
document.write("<td align='center'>Total</td>");
document.write("<td align='center'>Average</td>");
document.write("</tr>");
classTotKor = 0;
classTotEng = 0;
classTotMat = 0;
classTotStudent = 0;
classAvgStudent = 0;
// Body
for (var i = countStart; i < countEnd; i++) {
document.write("<tr>");
document.write("<td>" + (i + 1) + "</td>");
document.write("<td> Name" + (i + 1) + "</td>");
document.write("<td align='right'>" + kor[i] + "</td>");
document.write("<td align='right'>" + eng[i] + "</td>");
document.write("<td align='right'>" + mat[i] + "</td>");
document.write("<td align='right'>" + studentTot[i] + "</td>");
document.write("<td align='right'>" + Math.ceil(studentAvg[i] * 100) / 100 + "</td>");
document.write("</tr>");
classTotKor += kor[i];
classTotEng += eng[i];
classTotMat += mat[i];
classTotStudent += studentTot[i];
classAvgStudent += studentAvg[i];
}
// Calculate class average
classKor[p] = classTotKor;
classEng[p] = classTotEng;
classMat[p] = classTotMat;
classTot[p] = classTotStudent;
classAvg[p] = classAvgStudent;
// Sum class score
document.write("<tr>");
document.write("<td>Class Total Score</td>");
document.write("<td></td>");
document.write("<td align='right'>" + classKor[p] + "</td>");
document.write("<td align='right'>" + classEng[p] + "</td>");
document.write("<td align='right'>" + classMat[p] + "</td>");
document.write("<td align='right'>" + classTot[p] + "</td>");
document.write("<td align='right'>" + Math.ceil(classAvg[p] * 100) / 100 + "</td>");
document.write("</tr>");
// Average class score
document.write("<tr>");
document.write("<td>Class Average</td>");
document.write("<td></td>");
document.write("<td align='right'>" + Math.ceil((classTotKor / studentClass) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil((classTotEng / studentClass) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil((classTotMat / studentClass) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil((classTotStudent / studentClass) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil((classAvgStudent / studentClass) * 100) / 100 + "</td>");
document.write("</tr>");
// Calculate cumulative score
aggreKor += classKor[p];
aggreEng += classEng[p];
aggreMat += classMat[p];
aggreTot += classTot[p];
aggreAvg += aggreTot / 3;
// Cumulative total score
document.write("<tr>");
document.write("<td>Cumulative Total Score</td>");
document.write("<td></td>");
document.write("<td align='right'>" + aggreKor + "</td>");
document.write("<td align='right'>" + aggreEng + "</td>");
document.write("<td align='right'>" + aggreMat + "</td>");
document.write("<td align='right'>" + aggreTot + "</td>");
document.write("<td align='right'>" + Math.ceil((aggreTot / 3) * 100) / 100 + "</td>");
document.write("</tr>");
// Cumulative average score
document.write("<tr>");
document.write("<td>Cumulative Average</td>");
document.write("<td></td>");
document.write("<td align='right'>" + Math.ceil((aggreKor / countEnd) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil((aggreEng / countEnd) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil((aggreMat / countEnd) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil((aggreTot / countEnd) * 100) / 100 + "</td>");
document.write("<td align='right'>" + Math.ceil(((aggreTot / countEnd) / 3) * 100) / 100 + "</td>");
document.write("</tr>");
// Tail
document.write("<tr style='border-left: none; border-right: none; height: 20px;'><td colspan='7' align='center'></td></tr>");
countStart = countEnd;
countEnd = countEnd + studentClass;
if (countEnd > studentAll) {
countEnd = studentAll;
studentClass = countEnd - countStart;
}
}
</script>
</table>
</body>
</html>
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cs |
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