1、input[type=‘button’]按钮 js方法实现
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var countdown=60;
function settime(obj) {
if (countdown == 0) {
obj.removeAttribute("disabled");
obj.value="免费获取验证码";
countdown = 60;
return;
} else {
obj.setAttribute("disabled", true);
obj.value="重新发送(" + countdown + ")";
countdown--;
}
setTimeout(function() {
settime(obj) }
,1000)
} </script><body> <input type="button" id="btn" value="Get verification code for free" onclick="settime(this)" />
</body>
</html>
2. The jquery method can
be called to pass the id or class when the button is needed.
<!DOCTYPE html>
<html>
<head>
<script src="js/jquery.min.js"></script>
<script type="text/javascript">
function invokeSettime(obj){
var countdown=60;
settime(obj);
function settime(obj) {
if (countdown == 0) {
$(obj).attr("disabled",false);
$(obj).text("get verification code");
countdown = 60 ;
return;
} else {
$(obj).attr("disabled",true);
$(obj).text("(" + countdown + "
setTimeout(function() {
settime(obj) }
,1000)
}
}
new invokeSettime("#btn");
</script>
<body>
<button id="btn" type="button">获取验证码</button>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
var countdown=60;
function settime(obj) {
if (countdown == 0) {
obj.removeAttribute("disabled");
obj.value="免费获取验证码";
countdown = 60;
return;
} else {
obj.setAttribute("disabled", true);
obj.value="重新发送(" + countdown + ")";
countdown--;
}
setTimeout(function() {
settime(obj) }
,1000)
} </script><body> <input type="button" id="btn" value="Get verification code for free" onclick="settime(this)" />
</body>
</html>
2. The jquery method can
be called to pass the id or class when the button is needed.
<!DOCTYPE html>
<html>
<head>
<script src="js/jquery.min.js"></script>
<script type="text/javascript">
function invokeSettime(obj){
var countdown=60;
settime(obj);
function settime(obj) {
if (countdown == 0) {
$(obj).attr("disabled",false);
$(obj).text("get verification code");
countdown = 60 ;
return;
} else {
$(obj).attr("disabled",true);
$(obj).text("(" + countdown + "
setTimeout(function() {
settime(obj) }
,1000)
}
}
new invokeSettime("#btn");
</script>
<body>
<button id="btn" type="button">获取验证码</button>
</body>
</html>