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Http://www.cnblogs.com/cy163/archive/2007/05/31/766886.htmlUnicode,gbk,utf-8 differencesIn simple terms, UNICODE,GBK and five yards are encoded values, and utf-8,uft-16 is the expression of this value. And the preceding three kinds of coding is a compatible, the same Chinese character, that three code value is completely different. such as "Han" Uncode value and GBK is not the same, assuming that Uncode is A040,GBK for b030, and Uft-8 code, that is, the value of the form of expression. Utf-8 cod

next two bytes as a double-byte if you encounter a byte with a high of 1, regardless of what the low byte high is. 2. Unicode, UCS and UTF Previous coding methods from ASCII, GB2312, GBK to GB18030 are backward-compatible. Unicode is compatible with ASCII only (or, more accurately, iso-8859-1 compatible), and is not compatible with GB code. For example, the Unicode encoding of the word "Han" is 6c49, while the GB code is baba. Unicode is also a me

Some people say that the host is nothing but a few pieces of hardware, but still quite exquisite. The author believes that DIY installed first need to look at the use of demand, after the determination of the need to choose reasonable hardware, generally speaking, CPU, motherboard, video card, memory, hard disk, power supply, chassis this order, but if this one encountered some x factors (unknown, uncertain factors) how to determine it? For example, t

I. Coding principle and implementationUnicode encoding is the basis for implementing Utf-8 and GB series encoding (GB2312, GBK, GB18030), although we can also directly do a utf-8 to these coded comparison table, but very few people will do so, because the UTF-8 variable encoding has uncertainty, Therefore, the general use of Unicode and GB encoding of the comparison table, Unicode (UCS-2) is actually utf-8 the underlying encoding, Utf-8 is only one of

PHP achieves Unicode and Utf-8 mutual conversion I. coding principles and implementation Unicode encoding is the basis for UTF-8 and gb series encoding (gb2312, gbk, and gb18030) Conversion. although we can also directly create a UTF-8-to-these encoding table, but few people will do this, because the variable encoding of UTF-8 is uncertain, so the general use of unicode and gb encoding in contrast to the table, unicode (UCS-2) is actually the basic

form: 00010110 00101110 is only two bytes. Binary files can also be displayed on the screen, but their contents are unreadable. When processing these files, the C system does not distinguish between types, which are treated as character streams and processed in bytes. The start and end of a stream of input and output characters is controlled only by program control and not by physical symbols such as carriage returns. Therefore, this file is also referred to as a "streaming file".

gb2312 text is still a location code. From the location code to the inner code, you need to add A0 to the high byte and low byte respectively. For any character encoding, the encoding unit sequence is specified by the encoding scheme and is irrelevant to the endian. For example, the GBK encoding unit is byte, and two bytes are used to represent a Chinese character. The order of these two bytes is fixed and is not affected by the CPU's byte order. The encoding unit of the UTF-16 is word (double

function unescape ( $str ) { $str = Rawurldecode ( $str ); Preg_match_all ("/(?:%u. { 4}) | #x. {4};|#\d+;|.+/u ",$str,$r);$ar=$r[0];//print_r ($ar);foreach($arAs$k=$v) {if(substr($v,0,2) =="%u"){$ar[$k] = Iconv ("Ucs-2be","UTF-8",Pack("H4",substr($v,-4))); } elseif (substr($v,0,3) ==" #x"){$ar[$k] = Iconv ("Ucs-2be","UTF-8",Pack("H4",substr($v,3,-1))); } elseif (substr($v,0,2) ==" A") {$ar[$k] = Iconv ("

In the past two days, I took the time to summarize/sort out the actual encoding methods and usage of various encodings in Java applications. I will record them here for future reference. In order to form a complete understanding and in-depth understanding of text encoding, in order to deal with various problems encountered during Java development, especially the garbled problem, I think it is better to make up a series to describe and analyze, including three articles: First Article: Java charac

: This article mainly introduces how to use PHP to convert Unicode to a UTF-8, for PHP tutorials interested in students can refer. Function unescape ($ str) {$ str = rawurldecode ($ str ); Preg_match_all ("/(? : % U. {4}) | # x. {4}; | # \ d +; |. +/U ", $ str, $ r); $ ar = $ r [0]; // print_r ($ ar ); foreach ($ ar as $ k = >$ v) {if (substr ($ v,) = "% u ") {$ ar [$ k] = iconv ("UCS-2BE", "UTF-8", pack ("H4", substr ($ v,-4 )));} elseif (substr (

dcb--à for FCOE service (feature LLDP to OPENDCBX)FCOE lan SAN fusion ,FPMA (24bit + bit) , CNA physical manifestation24bit:fc-map24bit:fc-idFIP Control Surface:1- Negotiate VLAN,2- request get fc-map address,3-FIP flogin,4- FCOE Forwarding polygonsFCOE StructureScsi/playload + FC + FCoE + EthFCoE Storage (target)-[SW (FCoE)/SW (FC)]-FC host (initiator)Vn-vf-f-nVn-vf-e-e-f-nVn-vf-ve-ve-f-n===========================ucs============================RC4Uc

Abstract: This article describes the conversion algorithms of common encodings in detail after sorting out various types of data. I. general character set (UCS) ISO/IEC 10646-1 [ISO-10646] defines a character set of more than 8 bits, known as the general character set (UCS), which contains most of the world's writeable character systems. Two types of multi-8-bit encoding have been defined, and each charact

The following small series for everyone to bring an article with How PHP converts Unicode to UTF-8 (recommended)。 Small series feel very good, now share to everyone, also for everyone to make a reference. Let's take a look at it with a little knitting. Examples are as follows: function Unescape ($str) { $str = Rawurldecode ($STR); Preg_match_all ("/(?:%u.{4}) |. {4};|\d+;|.+/u ", $str, $r); $ar = $r [0]; Print_r ($ar); foreach ($ar as $k + $v) { if (substr ($v, 0,2) = = "%u") {$ar

Explanation of common codesAuthor: Li JinnanAbstract: This article describes the conversion algorithms of common encodings in detail after sorting out various types of data.I. general character set (UCS)ISO/IEC 10646-1 [ISO-10646] defines a character set of more than 8 bits, known as the general character set (UCS), which contains most of the world's writeable character systems. Two types of multi-8-bit enc

the Ubuntu Chinese forum and configured it directly. AllCodePaste it directly to the terminal to run it!InstallProgramCode:Sudo apt-Get install vim-GTK vim-Doc cscope Create a startup ItemCode: Cat>/usr/share/applications/gvim. Desktop "========================================================== =========================================="Project: gvim configuration fileBy yonsan [QQ: 82555472]"Installation: sudo apt-Get install vim-GTK"Usage: Copy this file (. vimrc) to $ home/"============

binary FILE--from-dump file Read The DMI data from a binary FILE--no-sysfs do not attempt to read DMI data from SYSFS files--oem-string N only display the value of the given OEM string-V,--version Display the version and exitMore trusted information can be consulted: Http://man.linuxde.net/dmidecodeDmidecode parameter string and type list: (1) Valid string keywords Are:bios-vendor bios-version bios-release-date system-manufacturer System-product-name system-version system-serial-number system-u

Linux system Introduction Vim encoding and font details Like all popular text editors, VIM can well edit a variety of character encoding files, which of course include popular unicode encoding methods such as UCS-2 and UTF-8. Unfortunately, like a lot of software from the Linux world, you need to set it yourself.Vim has four options related to the character encoding method: encoding, fileencoding, fileenc

Today we're going to talk about the basics, and the high-end mod is just a small crowd. DIY computer, simply put a bunch of hardware patchwork, composed of a complete host. And this, CPU, board card, memory, etc. are not too much of a problem. One is due to strict product specifications, the second is the product quantity is not high, the third is directly related to host performance, more attention. Mainly prone to problems or mechanical and electrical cooling products. 　　

multilingual plane, The code segment from D800 to DFFF is permanently reserved and is not mapped to characters, so the UTF-16 encoding cleverly leverages this retained code point to encode characters in the auxiliary plane, which is explained later. Unicode is just a set of symbols, only the code points corresponding to the specified characters, and does not specify how to store, how to store there is a different encoding scheme, about the Unicode encoding scheme has two main main lines:

high byte from 81 to FE, low byte from 40 to 7E and 80 to FE; 4 byte first three byte from 81 to FE, the second and fourth bytes are from 30 to 39. UNICODE Unicode name "Universal Multiple-Octet Coded Character Set", short for UCS, is a Set of Character encodings maintained by international organizations. The UCOS assigns a unique code point (code point) to each character, which is usually expressed as U + xxxx, where xxxx is the corresponding hexade