标签：ima round int tle start tar document clear oca
点击begin 开始，每个1s更新时间。点击stop后，时间停止。、
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <script> var ID; function start(){ if (ID == undefined) { foo(); ID=setInterval(foo, 1000) } } function stop(){ clearInterval(ID); ID=undefined; } function foo(){ var date = new Date(); document.getElementById(‘timer‘).value=date.toLocaleString(); } </script> </head> <body> <input type="text" id="timer"> <button onclick="start()">begin</button> <button onclick="stop()">stop</button> </body> </html>
标签：ima round int tle start tar document clear oca
原文地址：http://www.cnblogs.com/snail280721764/p/7667743.html
