按钮禁用

// 恢复初始状态
    const init = (countTime) => {
      window.holdTime = 3;
      window.btn = e('#btn');
      $(btn).removeAttr('disabled');
      btn.innerText = '可以点击';
      clearInterval(countTime);
    };

    // 读秒计时间
    const counting = () => {
      let countTime = setInterval(() => {
        holdTime--;
        btn.innerText = holdTime + '秒后才能再次点击';
        if (holdTime == 0) {
          init(countTime);
        }
      }, 1000);
    };

    const __main = () => {
      init();
      bindEvent(btn, 'click', (e) => {
        btn.innerText = holdTime + '秒后才能再次点击';
        $(btn).attr('disabled', true);
        counting();
      });
    };

    __main();