获取验证码倒计时

/** * 重新获取验证码倒计时 * @returns */reGetSMS : function () {var obj = $('#btn_getCode');// 重新发送倒计时var validCode = true;var time=60;if (validCode) {validCode = false;var t = setInterval(function  () {time --;$(obj).html('重新获取('+time+'s)');if (time==0) {clearInterval(t);$(obj).html("重新获取");validCode = true;sms_flag = true;}},1000);}}