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原文連結:http://www.cnblogs.com/steed-zgf/archive/2012/02/03/2336984.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><script src="HTML/js/jquery-1.4.1.min.js" type="text/javascript"></script><script type="text/javascript">var InterValObj; //timer變數，控制時間var count = 5; //間隔函數，1秒執行var curCount;//當前剩餘秒數function sendMessage() { curCount = count; //設定button效果，開始計時 $("#btnSendCode").attr("disabled", "true"); $("#btnSendCode").val("請在" + curCount + "秒內輸入驗證碼"); InterValObj = window.setInterval(SetRemainTime, 1000); //啟動計時器，1秒執行一次 //向後台發送處理資料 $.ajax({ type: "POST", //用POST方式傳輸 dataType: "text", //資料格式:JSON url: ‘Login.ashx‘, //目標地址 data: "dealType=" + dealType +"&uid=" + uid + "&code=" + code, error: function (XMLHttpRequest, textStatus, errorThrown) { }, success: function (msg){ } });}//timer處理函數function SetRemainTime() { if (curCount == 0) { window.clearInterval(InterValObj);//停止計時器 $("#btnSendCode").removeAttr("disabled");//啟用按鈕 $("#btnSendCode").val("重新發送驗證碼"); } else { curCount--; $("#btnSendCode").val("請在" + curCount + "秒內輸入驗證碼"); } }</script></head><body> <input id="btnSendCode" type="button" value="發送驗證碼" onclick="sendMessage()" /></p></body></html>
jquery 實現 點擊按鈕後倒計時效果，多用於實現發送手機驗證碼、郵箱驗證碼
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