unicode碼的分布情況，夠清楚了吧！不僅漢字，什么都有了！
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0000..007F; Basic Latin
0080..00FF; Latin-1 Supplement
0100..017F; Latin Extended-A
0180..024F; Latin Extended-B
0250..02AF; IPA Extensions
02B0..02FF; Spacing Modifier Letters
0300..036F; Combining Diacritical Marks
0370..03FF; Greek
0400..04FF; Cyrillic
0530..058F; Armenian
0590..05FF; Hebrew
0600..06FF; Arabic
0700..074F; Syriac
0780..07BF; Thaana
0900..097F; Devanagari
0980..09FF; Bengali
0A00..0A7F; Gurmukhi
0A80..0AFF; Gujarati
0B00..0B7F; Oriya
0B80..0BFF; Tamil
0C00..0C7F; Telugu
0C80..0CFF; Kannada
0D00..0D7F; Malayalam
0D80..0DFF; Sinhala
0E00..0E7F; Thai
0E80..0EFF; Lao
0F00..0FFF; Tibetan
1000..109F; Myanmar
10A0..10FF; Georgian
1100..11FF; Hangul Jamo
1200..137F; Ethiopic
13A0..13FF; Cherokee
1400..167F; Unified Canadian Aboriginal Syllabics
1680..169F; Ogham
16A0..16FF; Runic
1780..17FF; Khmer
1800..18AF; Mongolian
1E00..1EFF; Latin Extended Additional
1F00..1FFF; Greek Extended
2000..206F; General Punctuation
2070..209F; Superscripts and Subscripts
20A0..20CF; Currency Symbols
20D0..20FF; Combining Marks for Symbols
2100..214F; Letterlike Symbols
2150..218F; Number Forms
2190..21FF; Arrows
2200..22FF; Mathematical Operators
2300..23FF; Miscellaneous Technical
2400..243F; Control Pictures
2440..245F; Optical Character Recognition
2460..24FF; Enclosed Alphanumerics
2500..257F; Box Drawing
2580..259F; Block Elements
25A0..25FF; Geometric Shapes
2600..26FF; Miscellaneous Symbols
2700..27BF; Dingbats
2800..28FF; Braille Patterns
2E80..2EFF; CJK Radicals Supplement
2F00..2FDF; Kangxi Radicals
2FF0..2FFF; Ideographic Description Characters
3000..303F; CJK Symbols and Punctuation
3040..309F; Hiragana
30A0..30FF; Katakana
3100..312F; Bopomofo
3130..318F; Hangul Compatibility Jamo
3190..319F; Kanbun
31A0..31BF; Bopomofo Extended
3200..32FF; Enclosed CJK Letters and Months
3300..33FF; CJK Compatibility
3400..4DB5; CJK Unified Ideographs Extension A
4E00..9FFF; CJK Unified Ideographs
A000..A48F; Yi Syllables
A490..A4CF; Yi Radicals
AC00..D7A3; Hangul Syllables
D800..DB7F; High Surrogates
DB80..DBFF; High Private Use Surrogates
DC00..DFFF; Low Surrogates
E000..F8FF; Private Use
F900..FAFF; CJK Compatibility Ideographs
FB00..FB4F; Alphabetic Presentation Forms
FB50..FDFF; Arabic Presentation Forms-A
FE20..FE2F; Combining Half Marks
FE30..FE4F; CJK Compatibility Forms
FE50..FE6F; Small Form Variants
FE70..FEFE; Arabic Presentation Forms-B
FEFF..FEFF; Specials
FF00..FFEF; Halfwidth and Fullwidth Forms
FFF0..FFFD; Specials
10300..1032F; Old Italic
10330..1034F; Gothic
10400..1044F; Deseret
1D000..1D0FF; Byzantine Musical Symbols
1D100..1D1FF; Musical Symbols
1D400..1D7FF; Mathematical Alphanumeric Symbols
20000..2A6D6; CJK Unified Ideographs Extension B
2F800..2FA1F; CJK Compatibility Ideographs Supplement
E0000..E007F; Tags
F0000..FFFFD; Private Use
100000..10FFFD; Private Use
http://blog.oasisfeng.com/2006/10/19/full-cjk-unicode-range/
因為FontRouter新版本開發的需要，在網上搜索了一下漢字的Unicode范圍，普遍給出了“U+4E00..U+9FA5”。但事實上這個范圍是不完整的，甚至連基本的全角（中文）標點也未包含在內。為此，我特地查詢了Unicode官方的Code Charts數據庫，並根據最新的Unicode 5.0版整理如下：
注：在絕大多數應用場合中，我們可以僅用（1）、（2）、（3）、（4）、（5）的集合作為CJK判斷的依據。
1）標准CJK文字
http://www.unicode.org/Public/UNIDATA/Unihan.html
Code point range
Block name
Release
U+3400..U+4DB5
CJK Unified Ideographs Extension A
3.0
U+4E00..U+9FA5
CJK Unified Ideographs
1.1
U+9FA6..U+9FBB
CJK Unified Ideographs
4.1
U+F900..U+FA2D
CJK Compatibility Ideographs
1.1
U+FA30..U+FA6A
CJK Compatibility Ideographs
3.2
U+FA70..U+FAD9
CJK Compatibility Ideographs
4.1
U+20000..U+2A6D6
CJK Unified Ideographs Extension B
3.1
U+2F800..U+2FA1D
CJK Compatibility Supplement
3.1
2）全角ASCII、全角中英文標點、半寬片假名、半寬平假名、半寬韓文字母：FF00-FFEF
http://www.unicode.org/charts/PDF/UFF00.pdf
3）CJK部首補充：2E80-2EFF
http://www.unicode.org/charts/PDF/U2E80.pdf
4）CJK標點符號：3000-303F
http://www.unicode.org/charts/PDF/U3000.pdf
5）CJK筆划：31C0-31EF
http://www.unicode.org/charts/PDF/U31C0.pdf
6）康熙部首：2F00-2FDF
http://www.unicode.org/charts/PDF/U2F00.pdf
7）漢字結構描述字符：2FF0-2FFF
http://www.unicode.org/charts/PDF/U2FF0.pdf
8）注音符號：3100-312F
http://www.unicode.org/charts/PDF/U3100.pdf
9）注音符號（閩南語、客家語擴展）：31A0-31BF
http://www.unicode.org/charts/PDF/U31A0.pdf
10）日文平假名：3040-309F
http://www.unicode.org/charts/PDF/U3040.pdf
11）日文片假名：30A0-30FF
http://www.unicode.org/charts/PDF/U30A0.pdf
12）日文片假名拼音擴展：31F0-31FF
http://www.unicode.org/charts/PDF/U31F0.pdf
13）韓文拼音：AC00-D7AF
http://www.unicode.org/charts/PDF/UAC00.pdf
14）韓文字母：1100-11FF
http://www.unicode.org/charts/PDF/U1100.pdf
15）韓文兼容字母：3130-318F
http://www.unicode.org/charts/PDF/U3130.pdf
16）太玄經符號：1D300-1D35F
http://www.unicode.org/charts/PDF/U1D300.pdf
17）易經六十四卦象：4DC0-4DFF
http://www.unicode.org/charts/PDF/U4DC0.pdf
18）彝文音節：A000-A48F
http://www.unicode.org/charts/PDF/UA000.pdf
19）彝文部首：A490-A4CF
http://www.unicode.org/charts/PDF/UA490.pdf
20）盲文符號：2800-28FF
http://www.unicode.org/charts/PDF/U2800.pdf
21）CJK字母及月份：3200-32FF
http://www.unicode.org/charts/PDF/U3200.pdf
22）CJK特殊符號（日期合並）：3300-33FF
http://www.unicode.org/charts/PDF/U3300.pdf
23）裝飾符號（非CJK專用）：2700-27BF
http://www.unicode.org/charts/PDF/U2700.pdf
24）雜項符號（非CJK專用）：2600-26FF
http://www.unicode.org/charts/PDF/U2600.pdf
25）中文豎排標點：FE10-FE1F
http://www.unicode.org/charts/PDF/UFE10.pdf
26）CJK兼容符號（豎排變體、下划線、頓號）：FE30-FE4F
http://www.unicode.org/charts/PDF/UFE30.pdf
以上翻譯自Unicode官方網站，部分譯法可能不夠准確，還望大家予以指正！如有疏漏、錯誤之處也請一並指出，多謝！