代码示例:(标识:jsck_win_setinterval_clearinterval_1)
<!DOCTYPE html>
<html>
<body>

<h1>Window 对象</h1>

<h2>setInterval() 和 clearInterval() 方法</h2>

<p>在此例中,setInterval() 方法每 500 毫秒执行一次 setColor() 函数,在两种背景颜色之间切换。</p>

<button onclick="stopColor()">停止切换</button>

<script>
myInterval = setInterval(setColor, 500);
 
function setColor() {
  let x = document.body;
  x.style.backgroundColor = x.style.backgroundColor == "yellow" ? "pink" : "yellow";
}

function stopColor() {
  clearInterval(myInterval);
}
</script>

</body>
</html>
运行结果: