<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
// 이중 for문 (구구단 실습)
for(let i=2; i<=9; i++) {
document.write(`[ ${i}단 ]`);
document.write('<br>');
for(let j=1; j<=9; j++) {
document.write(`${i}X${j}=${i*j} <br>`);
}
document.write('<br>');
}
</script>
</body>
</html>
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