廢話不多說了，直接給大家貼代碼了，具體代碼如下所示：
<!DOCTYPE html><html lang="en" xmlns="http://www.w3.org/1999/xhtml"><head> <meta charset="utf-8" /> <title></title> <style type="text/css"> #result{ width:500px; border:1px solid #CCCCCC; background:#FFFFCC; margin:50px auto; font-size:24px; color:#FF0000; padding:20px; } </style> <script type="text/javascript"> window.onload = function () { showTime(); var start = document.getElementById("start"); start.onclick=function () { var path = document.getElementById("path").value; var time1 = document.getElementById("time1").value; var time2 = document.getElementById("time2").value; var time3 = document.getElementById("time3").value; start.value = "等待打開搶單頁面"; setInterval(function () { var date = new Date(); var hour = date.getHours(); var minute = date.getMinutes(); var second = date.getSeconds(); if (hour == time1 && minute == time2 && second == time3) { window.open(path); } }, 100); }; } function showTime() { //創建Date對象 var today = new Date(); //分別取出年、月、日、時、分、秒 var year = today.getFullYear(); var month = today.getMonth()+1; var day = today.getDate(); var hours = today.getHours(); var minutes = today.getMinutes(); var seconds = today.getSeconds(); //如果是單個數，則前面補0 month = month<10 ? "0"+month : month; day = day <10 ? "0"+day : day; hours = hours<10 ? "0"+hours : hours; minutes = minutes<10 ? "0"+minutes : minutes; seconds = seconds<10 ? "0"+seconds : seconds; //構建要輸出的字符串 var str = year+"年"+month+"月"+day+"日 "+hours+":"+minutes+":"+seconds; //獲取id=result的對象 var obj = document.getElementById("result"); //將str的內容寫入到id=result的<div>中去 obj.innerHTML = str; //延時器 window.setTimeout("showTime()",1000); } </script></head><body> <div> <h2>1,同步電腦時間和北京時間</h2> <h2>2,設置path地址為需要搶券的地址和搶券時間</h2> <!--<h3>搶券地址</h3><input type="text" id=path />--> <h3>搶券地址(注意不要漏掉http://或者https://)</h3> <!--<textarea id="path" style="width:200px;height:80px;"></textarea>--> <input type="url" id="path" style="width:auto"/> <h3>搶券時間</h3> <input type="text" id=time1 />時<input type="text" id=time2 />分 <input type="text" id=time3 />秒 <h2>3,點擊等待，然后去點擊搶券</h2> <input type="button" id="start" value="開始"/><div id="result"></div> </div></body></html>總結
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