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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="http://cdn.static.w3big.com/libs/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("button").click(function(event){ $("span").text(event.timeStamp); }); }); </script> </head> <body> <p>点击事件发生在距 1970 年 1 月 1 日后的<span style="color:red">unknown</span> 毫秒。</p> <button>点我</button> </body> </html>