$('#loginForm').bootstrapValidator('disableSubmitButtons', false); 

//禁用button
$('button').addClass('disabled'); // Disables visually
$('button').prop('disabled', true); // Disables visually + functionally
//禁用类型为button的input按钮
$('input[type=button]').addClass('disabled'); // Disables visually
$('input[type=button]').prop('disabled', true); // Disables visually + functionally
//禁用超链接
$('a').addClass('disabled'); // Disables visually
$('a').prop('disabled', true); // Does nothing
$('a').attr('disabled', 'disabled'); // Disables visually

$(".btn-check").click(function () {
      $('button').addClass('disabled'); // Disables visually
$('button').prop('disabled', true); // Disables visually + functionally
    });

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);