what is difference between ipv4 and ipv6

Let's make an analogy.Open a QQ, opened a process, opened a thunderbolt, opened a process.QQ in this process, the transmission of text to open a thread, the transmission of voice opened a thread, pop-up dialog box and opened a thread.So running a software is equivalent to opening a process. In the process of running the software (in this process), a number of work support to complete the operation of QQ, then this "multiple jobs" have a thread.So a pr

What are their differences ?? What is the difference ?? What form of results are they stored and obtained ?? ______________________________________________________________ Answer 3: They are basically the same, but the returned array structure

function, and require () is an unconditional include function.For example, if the variable $somg is true, the file somefile.php will be included: if ($some) { Include ' somefile.php '; } However , regardless of the $some value, the following code will include the file somefile.php into the file: if ($something) { Require ' somefile.php '; } The following example

What is the difference between the trinocular operator and the If else in JavaScriptToday wrote a picture of a small demo of the carousel, used to judgeTry it first. If else, the code is as follows:if (n >= count-1) {n = 0;}else{n + +;}Then the code is finished, ready to opt

What is the difference between directly mounting a hard disk and attaching a partition in Linux?Zookeeper 1. Problem What is the difference between directly mounting a hard disk and attaching a partition in Linux?For example, the

What is the difference between the unique key constraint of SQLServer and the unique index ?, Sqlserver Index I used to want to know what the difference was, but I forgot it because we seldom use the unique key constraint. A few days ago, my colleague gave me a script to con

status on the client, such as cookie technology. Open (windows System) C: \ Documents ents and Settings \ User Name \ Cookies, you will find some *. small txt files, which are cookies sent to you When you browse some websites ). III. The boss sends a membership card to the customer. No information except the card number is recorded. If the customer shows the card every time he buys the roast duck, the boss moves out of the store's roster, find your c

Laravel depends on _ construct (User $ user) in the constructor of the class, and then the subsequent methods are called directly using $ this- amp; gt; user, what is the difference between using User: find () directly? Which one is recommended? Laravel depends on the injection _ construct (User $ user) in the construc

What is the difference between adding 1 by prefix and adding 1 by suffix? prefix 1 and The increment operator ++ is a unary operator. The increment operator can appear before the variable as the prefix or suffix after the variable. What