JavaScript实现京东商城秒杀倒计时

吃着丸子搞代码

323人浏览 · 2025-10-10 16:25:47

吃着丸子搞代码 · 2025-10-10 16:25:47 发布

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>时间日期对象</title>
    <!-- <link rel="stylesheet" href="css/style.css">  -->
	 <style>
		 .jingdong {
		        width: 190px;
		        height: 260px;
		        padding-top: 10px;
		        background-image: url(jingdong.png);
		        margin: 50px auto;
		      }
		      h2 {
		        margin-top: 31px;
		        font-size: 30px;
		      }
		      h2,
		      p {
		        color: #fff;
		        font-weight: 700;
		        text-align: center;
		      }
		      p {
		        margin-top: 80px;
		        font-size: 16px;
		      }
		 
		      p strong {
		        font-size: 18px;
		      }
		 
		      .time {
		        position: relative;
		        width: 130px;
		        height: 30px;
		        margin: 0 auto;
		      }
		 
		      span {
		        position: relative;
		        display: inline-block;
		        width: 30px;
		        height: 30px;
		        line-height: 30px;
		        text-align: center;
		        background-color: #2f3430;
		        color: #fff;
		        margin: 0 5px;
		        font-weight: bold;
		        font-size: 18px;
		      }
		 
		      span:nth-child(-n + 2)::after {
		        content: ":";
		        display: inline-block;
		        position: absolute;
		        bottom: 0;
		        left: 27px;
		        width: 20px;
		        height: 30px;
		        color: #fff;
		        font-size: 18px;
		      }
	 </style>
  </head>
	
  <body>
    <div class="jingdong">
      <h2>京东秒杀</h2>
      <p><strong id="clock">21:00</strong>点场 距结束</p> <!--显示当前为几点场，js中用Session变量保存-->
      <div class="time">
        <span id="shi"></span>
        <span id="fen"></span>
        <span id="miao"></span>
      </div>
    </div>
    <script>    
	 	function countTime(){
	 		var now = new Date();
	 		var nowHour = now.getHours();
	 		var Session = "";
	 		var end = new Date();
	 		if(nowHour>=6){
	 			end.setMinutes(0);end.setSeconds(0);
	 			if(nowHour >= 6 && nowHour<10){
	 				Session = "8:00";
	 				end.setHours(8);
	 			}
	 			if(nowHour >= 8 && nowHour<10){
	 				Session = "10:00";
	 				end.setHours(10);
	 			}
	 		if(nowHour >= 10 && nowHour<12){
	 			Session = "12:00";
	 			end.setHours(12);
	 		}
	 		if(nowHour >= 12 && nowHour<14){
	 			Session = "14:00";
	 			end.setHours(14);
	 		}
	 		if(nowHour >= 14 && nowHour<16){
	 			Session = "16:00";
	 			end.setHours(16);
	 		}
	 		if(nowHour >= 16 && nowHour<18){
	 			Session = "18:00";
	 			end.setHours(18);
	 		}
	 		if(nowHour >= 18 && nowHour<20){
	 			Session = "20:00";
	 			end.setHours(20);
	 		}
	 		if(nowHour >= 20 && nowHour<22){
	 			Session = "22:00";
	 			end.setHours(22);
	 		}
	 		if(nowHour >= 22){
	 			Session = "0:00";
	 			end.setHours(24);
	 		}
	 		} else {
	 			Session = "暂时没有秒杀";
	 			}
	 			document.getElementById("clock").innerHTML = Session;
	            var lag = (end-now)/1000;
				var hour = parseInt(lag/(60*60));
				var minute=Math.floor((lag/60)%60);
				var second = Math.floor(lag%60);
				hour = hour < 10 ? "0"+hour:hour;
				minute = minute < 10 ? "0"+minute:minute;
				second = second < 10 ? "0"+second:second;
				document.getElementById("shi").innerHTML = hour;
				document.getElementById("fen").innerHTML = minute;
				document.getElementById("miao").innerHTML = second;
				setTimeout("countTime()",1000);
				}
				window.onload = countTime;
	 
    </script>
  </body>
</html>

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