function timer(time) { |
var btn = $( "#sendButton" ); |
btn.attr( "disabled" , true ); //按钮禁止点击 |
btn.val(time <= 0 ? "发送动态密码" : ( "" + (time) + "秒后可发送" )); |
var hander = setInterval( function () { |
if (time <= 0) { |
clearInterval(hander); //清除倒计时 |
btn.val( "发送动态密码" ); |
btn.attr( "disabled" , false ); |
return false ; |
} else { |
btn.val( "" + (time--) + "秒后可发送" ); |
} |
}, 1000); |
} |
//调用方法 |
timer(30); |