영상
개념
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.blue { color: #00f; }
.red { color: #f00; }
</style>
</head>
<body>
<script>
let i = 20;
while( i >= 10 ){
if( i % 2 == 0 ){
document.write("<p class='blue'>" + i + "</p>");
}else{
document.write("<p class='red'>" + i + "</p>");
}
i--;
}
</script>
</body>
</html>
Java
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