清除定时器

Tutorial: DOM操作 Category: JS Published: 2026-04-07 13:58:26 Views: 20 Likes: 0 Comments: 0

<!DOCTYPE html>
<html lang="en">
  <head></head>

  <body>
    <button>点击停止定时器</button>

    <script>
      var btn = document.querySelector("button");

      var timer = setTimeout(function () {
        console.log("爆炸了");
      }, 5000);

      btn.addEventListener("click", function () {
        clearTimeout(timer);
      });
    </script>
  </body>
</html>

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