dfff

point, such as the code point of the character ' H ' is 72 (decimal), and the character ' Li ' has a code point of 26446 (decimal). The Unicode table contains 1,114,112 code points, which is 000000 (hexadecimal)-10FFFF (hexadecimal). All characters on the earth can find the corresponding unique code point in the Unicode table. Click here to query the code points for the characters. Unicode divides the code space into 17 planes, from 00-10 (16, up to two bits), that is, from 0-16 (decimal), each

character corresponds to a number, which is called a code point, such as the code point of the character ' H ' is 72 (decimal), and the character ' Li ' has a code point of 26446 (decimal). The Unicode table contains 1,114,112 code points, which is 000000 (hexadecimal)-10FFFF (hexadecimal). All characters on the earth can find the corresponding unique code point in the Unicode table. Click here to query the code points for the characters. Unicode divides the code space into 17 planes, from 00-1

): Map32 mspaintOwner OBJ name OBJ # address size typeMspaint. Text 0001 001b: 01001000 0003a500 code RoMspaint. Data 0002 0023: 0103c000 00002670 idata RWMspaint. rsrc 0003 0023: 0103f000 00020.c8 idata Ro-------------|| _ Logical Address // Relationship between the linear address and the physical address of the first running instance of mspaint.exe Linear address range physical address range attributes----------------------------------------------------00010000-00010fff 03a8b000-03a8bfff 04700

character set of Unicode, so it occupies only one UTF-16 unit, denoted as [0041]. and character 650) this.width=650; "Width=" height= "align=" Bottom "src=" http://www.oracle.com/ocom/groups/public/@otn/ Documents/digitalasset/145818.gif "style=" margin:0px;padding:0px;list-style:none;border:0px;font-family:arial, Helvetica, Sans-serif;font-size:12px;white-space:normal;background-color:rgb (255,255,255); The Unicode value of/> is u+ 10400, it belongs to the extended Unicode character set, so it

-a-and-a-all-in-a-|deeee fff|0000C0D0 (98): 0c 84 58 05 00 00 | ..... ..... x...|0000C0E0:2d 01 10 64 66 66 66 00 | B.C ....-.. dfff.|0000c0f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|0000c100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|0000c110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|We can analyze the data above to see how InnoDB stored the data.Store data page, start saving da

Transferred from: http://www.cnblogs.com/dragon2012/p/5020259.htmlUTF-16 is a conversion of the Unicode character set, which converts the Unicode code points to a 16-strong code element serial for data storage or delivery. The UTF-16 encoding rules are as follows:2.2.1 Code bits from u+d800 to U+DFFF (proxy area)Because the Unicode character set has a coded value range of 0-0X10FFFF, and the encoded value of a secondary plane area greater than or equa

:2d 01 10 64 66 66 66 00 | B.C ....-.. dfff.|0000c0f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|0000c100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|0000c110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|We were able to analyze the data above to see how InnoDB stored the data.Store data page, start saving data at 0000c078,03,02,01 represents a mutable field storage list (the longest byt

-0x07FF20x0800-0xFFFF30x010000-0x10FFFF4 Because of the space-saving feature of UTF-8, it becomes the most common webpage code on the Internet. However, it has little to do with today's theme and I will not go into depth. For details about the transcoding method, refer to the character encoding notes I wrote many years ago. 3. Introduction to UTF-16 UTF-16 coding is between UTF-32 and UTF-8, and the characteristics of the two encoding methods are combined. Its encoding rules are simple: the char

clever. I don't know whether it is intentional or not. In the basic plane, from U + D800 to U + DFFF is an empty segment, that is, these vertices do not correspond to any characters. Therefore, this empty segment can be used to map characters in the secondary plane. Specifically, there are a total of 220 character bits in the secondary plane. That is to say, at least 20 binary bits are required for these characters. The UTF-16 splits the 20 bits into

?It's clever, I don't know if it was intentional design, in the basic plane, from u+d800 to U+dfff is an empty segment, that is, these code points do not correspond to any characters. Therefore, this empty segment can be used to map the characters of the auxiliary plane.Specifically, there are 220 character bits in the auxiliary plane, which means at least 20 bits are required to correspond to these characters. UTF-16 the 20 bits into two halves, the

know whether it is intentional or not. In the basic plane, from U + D800 to U + DFFF is an empty segment, that is, these vertices do not correspond to any characters. Therefore, this empty segment can be used to map characters in the secondary plane. Specifically, there are a total of 220 character bits in the secondary plane. That is to say, at least 20 binary bits are required for these characters. The UTF-16 splits the 20 bits into two halves, and

the basic plane, from u+d800 to U+dfff is an empty segment, that is, these code points do not correspond to any characters. Therefore, this empty segment can be used to map the characters of the auxiliary plane.Specifically, there are 220 character bits in the auxiliary plane, which means at least 20 bits are required to correspond to these characters. UTF-16 the 20 bits into two halves, the first 10 bits mapped to u+d800 to U+DBFF (space size 210),

-0x10FFFF4 Because of the space-saving feature of UTF-8, it becomes the most common webpage code on the Internet. However, it has little to do with today's theme and I will not go into depth. For details about the transcoding method, refer to the character encoding notes I wrote many years ago. 3. Introduction to UTF-16 UTF-16 coding is between UTF-32 and UTF-8, and the characteristics of the two encoding methods are combined. Its encoding rules are simple: the character in the basic plane occup

the most common Web page encoding on the Internet. However, it has little to do with today's topic, I will not go deep, specific transcoding method, you can refer to my years ago, "character coding notes." Iii. UTF-16 Introduction UTF-16 coding is between UTF-32 and UTF-8, and it combines the characteristics of fixed length and variable length two coding methods. Its coding rules are simple: the basic plane's characters occupy 2 bytes, and the auxiliary plane's characters occupy 4 bytes. Tha

ASCII code. Number Range byte 0x0000-0x007f10x0080-0x07ff20x0800-0xffff30x010000-0x10ffff4 Because of this space-saving feature, UTF-8 makes it the most common Web page encoding on the Internet. However, it has little to do with today's topic, I will not go deep, specific transcoding method, you can refer to the "character coding notes." Iii. UTF-16 Introduction UTF-16 coding is between UTF-32 and UTF-8, and it combines the characteristics of fixed length and variable length two coding meth

is self-synchronizing, we can start reading from any position in the byte stream, skipping up to 3 bytes, and we can find the bounds of the character. In the UTF-8 encoding, C0, C1, f5~ff are not allowed to appear. That's the rule. At the same time, for code that is u+d800~u+dfff between code points, UTF-8 is refusing to encode it UTF-8. This is because for UTF-16, this interval is used as a surrogate for the child and is not a direct representation

between 000000-00007F and is encoded in one byte; The characters between 000080-0007FF use two bytes;3 bytes between 000800-00D7FF and 00E000-00FFFF. Note: Unicode does not exist in the range D800-DFFF;4 bytes between 010000-10FFFF. While the UTF-16 is a fixed length character encoding, most of the characters use two bytes encoding, character code exceeds 65535 use four bytes, as shown below: 000000-00 FFFF two bytes;010000-10 FFFF four bytes. At the

multilingual plane(Basic multilingual plane, BMP), or the nth plane (plane 0 ). Other planes are calledSecondary plane(Supplementary planes ). In the Basic multi-text plane, the bitwise segments from u + d800 to U + dfff are permanently retained and do not map to characters, so the UTF-16 cleverly utilizes the reserved locationCharacters in the secondary planeEncoding. In the UTF-16,Characters in the secondary plane are encoded as a 16-bit long cod

Unicode is implemented in a different way than encoding.The Unicode encoding of a character isOKBut in the actual storage and transmission process, because the design of different system platforms is not necessarily consistent, and for the purpose of saving space, UnicodeThe encoding implementation methods are different.. Unicode format (unicodetransformation format)UTF). Unicode encoding mainly include UTF-16BE, UTF-16LE, UTF-8, UTF-7 and UTF-32 and other implementation methods, the current co

second cell is from a low-agent range (u+dc00 to U+DFFF). This may seem conceptually similar to multibyte encoding, but there is one important difference: The value u+d800 to U+dfff is reserved for UTF-16, and no such value is assigned as a code point. This means that for each individual unit of code in a string, the software can identify whether the unit of code represents a single-element character, or w