GBK stands for Chinese Internal Code Specification. K is the initial of Kuo Zhan, the pinyin for "extension". It is the Chinese character encoding national standard published in December 1995.
GBK contains 21,886 Chinese characters and graphic symbols:
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Every Chinese character in GB2312 (6,763) and the non-Chinese symbols
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Every Chinese character in Big5
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Other CJK characters from GB 13000, the national standard corresponding to ISO 10646
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Other Chinese characters, radicals, and symbols, 984 in all
GBK uses two bytes. The overall range is 8140-FEFE. The first byte is 81-FE and the second byte is 40-FE. The low byte no longer has to be greater than 127, and the XX7F line is excluded.
GBK is divided into three parts:
(1) Chinese character area
- GBK/2: 0XB0A1-F7FE, the 6,763 GB 2312 characters, in their original order
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GBK/3: 0X8140-A0FE, 6,080 CJK characters
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GBK/4: 0XAA40-FEA0, 8,160 CJK characters and added characters
(2) Graphic symbol area
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GBK/1: 0XA1A1-A9FE, the GB 2312 symbols plus other symbols
- GBK/5: 0XA840-A9A0, the extended non-Chinese area
(3) User-defined area
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Blank areas in GBK, where users can define their own characters
