正在学JS的渣渣哪位大神能做出这样的计时器呀求救^o^

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>计时器</title> </head> <body> <div id="timer-container"> <h2>计时器</h2> <input type="text" id="timer-view" readonly value="00:00:00:00"> <button onclick="start()">开始计时</button> <button onclick="pause()">结束计时</button> <button onclick="reset()">复位</button> </div> <script> var timer = null; var msDef = 0; var timerData = []; var timerView = document.getElementById('timer-view'); function start() { clearInterval(timer); timer = setInterval(function() { update((msDef += 10, msDef)); }, 10); } function pause() { clearInterval(timer); } function reset() { clearInterval(timer); update((msDef = 0, msDef)); } function update(ms) { timerData[0] = Math.floor(ms / 3600000); timerData[1] = Math.floor(ms / 60000 % 60); timerData[2] = Math.floor(ms / 1000 % 60) timerData[3] = Math.floor(ms / 10 % 100); timerView.value = formatTime(timerData); } function formatTime(arr) { for (var i = 0; i < arr.length; i++) { arr[i] = (arr[i] < 10 ? '0' : '') + arr[i]; } return arr.join(':'); } </script> </body> </html>（只写了js，样式简单楼主自己写下吧~，望采纳~）

正在学JS的渣渣哪位大神能做出这样的计时器呀 求救^o^

1回答

正在学JS的渣渣哪位大神能做出这样的计时器呀求救^o^