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// PHP example - include at the top of your pages
<? php
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache"); // HTTP/1.0
?>
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<iframe style="height:0px;width:0px;visibility:hidden" src="about:blank">
this frame prevents back forward cache
</iframe>
// PHP example - include at the top of your pages
<? php
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); // HTTP/1.1
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache"); // HTTP/1.0
?>
Safariçåéï¼åè¿ï¼Back/Forwardï¼ç¼åï¼ç¨æ·æåBackæè Forwardè¿ä¸¤ä¸ªæµè§å¨æé®æ¶ä½¿ç¨çç¼åï¼ä¹å¯ä»¥è¢«é»æï¼åªè¦ç¡®ä¿æ¨ç页é¢å å«ä¸ä¸ªå¸§å°±å¯ä»¥äºãåºäºå¸§ç页é¢æ°¸è¿ä¸ä¼åå¨å¨åéï¼åè¿ç¼åä¸ï¼éè¿å¢å ä¸ä¸ªä¸å¯è§çiframeï¼æ¨å°±å¯ä»¥ç¡®ä¿ä¸æ¯åºäºå¸§ç页é¢çè¡ä¸ºååºäºå¸§ç页é¢ç¸ç±»ä¼¼ï¼å¦ä¸æ示ï¼
<iframe style="height:0px;width:0px;visibility:hidden" src="about:blank">
this frame prevents back forward cache
</iframe>
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第1个回答 2007-08-03
MAC应该是ARP缓存吧。
arp -a
主机地址对应的MAC地址
arp -a
主机地址对应的MAC地址