<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<div onclick="test()" style="cursor:pointer;" id="time">倒计时器</div>
	</body>
</html>
<script>
	    var time = 60;
		function test(){
			setInterval(function() {
				time--;
				document.querySelector("#time").innerHTML = time + "秒";
				if(time == 0) {
					time = 60;
				}
			
			}, 1000);
		}
</script>
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