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>
#content {
width: 300px;
height: 300px;
font-size: 100px;
text-align: center; /* 텍스트 가로 가운데 정렬 */
line-height: 300px; /* 텍스트 세로 가운데 정렬 */
border: 1px solid black;
}
</style>
</head>
<body>
<div id="content">
0
</div>
<button onclick="stopCnt()">중지</button>
<script>
let element = document.getElementById("content");
let myTimer = setInterval(addCnt, 1000);
let cnt = 0;
function addCnt() {
cnt++;
element.innerHTML = cnt;
}
function stopCnt() {
clearInterval(myTimer);
}
</script>
</body>
</html>
Java
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