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HTMLcharset
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HTMLcharset

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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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UTF-8 : 

  1. UCS U+0000 U+007F (ASCII) 0x00 0x7F (ASCII ). ζ 7 λ ASCII l ASCII UTF-8 '.
  2. >U+007F UCS ^J, "yбλ. , ASCII (0x00-0x7F) κ.
  3. ASCII K^j 0xC0 0xFD kΧ, . 0x80 0xBF Χ. ′dz, ′, .
  4. п 231 UCS
  5. UTF-8 6 , 16 λ BMP ~o 3 .
  6. Bigendian UCS-4 .
  7. 0xFE 0xFF UTF-8 дδ~o.

UTF-8己^o′^o

GB2312 :
GB2312 1/4 676337553008GB2312 1/4 682

GB2312ij 1/4 l99.75%′GB2312ж“”"y94/s'λ

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16-55

56-87/‘

10-1588-94δб

“”GB2312е^jλ1601′GB2312ijУEUC淽ASCII"y“λ”“λ” “λ”′0xA1-0xF7(01-87z0xA0)“λ”′0xA1-0xFE(01-940xA0)“”У0xB0A1档λ0xB0=0xA0+16,0xA1=0xA0+1

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GB2312к176247λ161255.洢6763С82*94=6768215λ250-254乲^uк6768-5=6763

GB2312~o

Z′вCSS′Zcss hack

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UTF-8 GBK UTF8 GB2312ε
 

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