本文實例講述了jQuery短信驗證倒計時功能實現(xiàn)方法。分享給大家供大家參考,具體如下:
<!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>
<title>demo 短信驗證碼60秒,并限制次數(shù)</title>
<script src="js/time.js" type="text/javascript"></script>
</head>
<body>
<div class="input">
<input type="button" id="btn" class="btn_mfyzm" value="獲取驗證碼" />
</div>
</body>
<script>
var wait=60*2;
document.getElementById("btn").disabled = false;
function time(o) {
if (wait == 0) {
o.removeAttribute("disabled");
o.value="免費獲取驗證碼";
wait = 60*2;
} else {
o.setAttribute("disabled", true);
o.value="重新發(fā)送(" + wait + ")";
wait--;
setTimeout(function() {
time(o)
},
1000)
}
}
document.getElementById("btn").onclick=function(){time(this);}
</script>
</html>
time.js內(nèi)容如下:
var InterValObj; //timer變量,控制時間
var count = 60; //間隔函數(shù),1秒執(zhí)行
var curCount;//當前剩余秒數(shù)
var code = ""; //驗證碼
var codeLength = 6;//驗證碼長度
function sendMessage() {
curCount = count;
var dealType; //驗證方式
var uid=$("#uid").val();//用戶uid
if ($("#phone").attr("checked") == true) {
dealType = "phone";
}
else {
dealType = "email";
}
//產(chǎn)生驗證碼
for (var i = 0; i < codeLength; i++) {
code += parseInt(Math.random() * 9).toString();
}
//設(shè)置button效果,開始計時
$("#btnSendCode").attr("disabled", "true");
$("#btnSendCode").val("請在" + curCount + "秒內(nèi)輸入驗證碼");
InterValObj = window.setInterval(SetRemainTime, 1000); //啟動計時器,1秒執(zhí)行一次
//向后臺發(fā)送處理數(shù)據(jù)
$.ajax({
type: "POST", //用POST方式傳輸
dataType: "text", //數(shù)據(jù)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(shù)
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(fā)送驗證碼");
code = ""; //清除驗證碼。如果不清除,過時間后,輸入收到的驗證碼依然有效
}
else {
curCount--;
$("#btnSendCode").val("請在" + curCount + "秒內(nèi)輸入驗證碼");
}
}
希望本文所述對大家jQuery程序設(shè)計有所幫助。