text: const timer = new Timer("2022-01-01T00:00:00.000+08:00"); // 实例化 Timer
  
  function refresh(){
  	const timing = timer.timing(); // 计时
  	if (timing.countdown) {
  		document.querySelector("#crossHours").innerText = timing.hours;
  		document.querySelector("#crossMinutes").innerText = timing.minutes;
  		document.querySelector("#crossSeconds").innerText = timing.seconds;
  	} else {
  		intervalID = clearInterval(intervalID);
  		document.querySelector("#crossYear").innerHTML = "<h2>北京时间2022年已到！</h2><div>你好，2022！<br/>愿疫情早日结束，愿新的一年更加美好！</div>";
  	}
  }
  
  let intervalID = setInterval(refresh, 200);