what is nvr mean

What does it mean to install the arpfirewall on the site? I just applied for a domain name and used my classmate's server. The classmate said, your site: you must install an arpfirewall! What does it mean to install an arpfirewall for the site? Nbsp; how to install it? Nbsp; I downloaded a shadow arpfirewall .. Then

Original: What does the settimeout (fn,0) under JavaScript mean?I'm very sensitive to settimeout and stuff like that in the recent study of asynchronous programming. On the segmentfault saw a problem "about settimeout time set to 0 o'clock": the questioner read an article, the original explanation of the SetTimeout delay time is 0 when things will happen, the que

　　What does HTTPS mean? HTTPS is called hypertext Transfer Protocol over Secure socket Layer, the Chinese meaning of "Hypertext Transfer Protocol in the security of encrypted word layer", in simple terms is encrypted data transmission, popular saying is a secure connection.

Today, many smart phones and LCD display IPs hard screen as a major selling point, we can also in a lot of better mobile phones or LCD parameters to see the IPs screen, and so on, what is the meaning of the IPs hard screen, and what advantages? Today the script's little one is going to share this topic with you, This

What does ajax. call mean ??? Lt; tdalign = quot; center quot; gt; lt; imgsrc = quot; images/{if $ link. ischeck} yes {else} no {/if}.gif quot; onclick = qu ajax. what does call mean ??? {$ Link. link_id} This code calls the listTable. toggle function. ListTable. toggle = function (obj, act, id) { Var val = (o

What does the continuous use of "equal sign" mean? The following is a piece of code in dedecms: $ dsql $ dbnew nbsp; DedeSql (FALSE) is assigned a value. what does this method mean? ------ Solution -------------------- assign $ a

{Code...} newstatic ($ user); what does it mean ?? php public static function findIdentityByAccessToken($token, $type = null) { foreach (self::$users as $user) { if ($user['accessToken'] === $token) { return new static($user); } } return null; } Thisnew static($user);What does that

What does this code mean? Lt ;? Php $ host nbsp; = nbsp; $ _ SERVER ['http _ host']; $ HOST nbsp; = nbsp; substr ($ host, nbsp; 0, nbsp; strpos ($ host, nbsp ;'. 12. what does this code mean? $ Host = $ _ SERVER ['http _ host'];$ Host = substr ($ host, 0, strpos ($ host, '.123.baidu.com '));If (! Empty ($

What does the header tag in HTML5 mean? How to use header tags in HTML5 do you know? This article mainly introduces the HTML5 's head label Introduction to the homepage: Definition and usage of header tags in HTML: HTML Instructions for use: The Examples of usage: Differences between HTML 4.01 and HTML 5 The Header tags are different from our most familiar head tags, headers are often more often use

friends who study or care about the network often hear a network jargon such as "gateway". So what does a gateway mean? What role does it play in the network? Today, a small series to the popular science for everyone what the gateway and its role. 　　What