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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                ? ? ? ? 在WAMP(Windows+Apache+MySQL+PHP)做網站時,通常需要使用Session記錄表單登陸用戶名和密碼等變量,而在登出時需要清除Session。通常我想實現的登出是通過alert提示用戶然后header跳轉,但下面的代碼是通過JavaScript實現的時間倒計時并跳轉到主頁的效果,主要是看到學校的BT網站等都是這個效果。 ? ? ? PS:參考?[C# 系統應用之Cookie\Session基礎知識及php讀取Cookie\Session](http://blog.csdn.net/eastmount/article/details/18767773) ? ? ? 代碼如下: ~~~ <?php session_start(); session_destroy(); //清空以創建的所有SESSION setcookie(session_name(),'',time()-1); $_SESSION = array(); ?> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>登出系統</title> <link href="css/mycss.css" type="text/css" rel="stylesheet"/> </head> <body> <div id="main"> <TABLE cellSpacing=0 cellPadding=0 width="100%" background="images/header_bg.gif" border=0> <!--頭部圖片--> <TR height=80> <TD width=260> <IMG height=80 src="images/logo.gif" width=260> </TD> </TABLE> <TABLE cellSpacing=0 cellPadding=0 width="100%" border=0> <TR bgColor=#1c5db6 height=20> <TD></TD></TR> </TABLE> <!-- 布局中部 --> <div id="middle"> <div id="logout_middle"> <H3 style="COLOR: #880000">注銷成功</H3> <H4>您已經登出系統!歡迎下次登錄!<br />系統將在 <input type="text" style='font-size:18px; border:0px; width:20px;' readonly="true" value="5" id="time">秒后返回主頁游客查看界面 </H4> </div> <!-- 時間函數 --> <script language="javascript"> var t = 5; var time = document.getElementById("time"); function fun() { t--; time.value = t; if(t<=0) { location.href="index.php"; clearInterval(inter); } } var inter = setInterval("fun()",1000); </script> </body> </html> ~~~ ? ? ? 實現的效果如下: ![](https://box.kancloud.cn/99b816efea0eb687622be3b6463385b1_977x625.jpg) ? ? ? 最后希望文章對大家有所幫助,也嘗試不同風格,寫點短文章。 ? ? ? (By:Eastmount 2015-2-21 ?[http://blog.csdn.net/eastmount/](http://blog.csdn.net/eastmount/))
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