全角和半角字符字符Halfwidth and Fullwidth Forms

U+FF00 - U+FFEF

U+FF01
U+FF02
U+FF03
U+FF04
U+FF05
U+FF06
U+FF07
U+FF08
U+FF09
U+FF0A
U+FF0B
U+FF0C
U+FF0D
U+FF0E
U+FF0F
U+FF10
U+FF11
U+FF12
U+FF13
U+FF14
U+FF15
U+FF16
U+FF17
U+FF18
U+FF19
U+FF1A
U+FF1B
U+FF1C
U+FF1D
U+FF1E
U+FF1F
U+FF20
U+FF21
U+FF22
U+FF23
U+FF24
U+FF25
U+FF26
U+FF27
U+FF28
U+FF29
U+FF2A
U+FF2B
U+FF2C
U+FF2D
U+FF2E
U+FF2F
U+FF30
U+FF31
U+FF32
U+FF33
U+FF34
U+FF35
U+FF36
U+FF37
U+FF38
U+FF39
U+FF3A
U+FF3B
U+FF3C
U+FF3D
U+FF3E
_U+FF3F
U+FF40
U+FF41
U+FF42
U+FF43
U+FF44
U+FF45
U+FF46
U+FF47
U+FF48
U+FF49
U+FF4A
U+FF4B
U+FF4C
U+FF4D
U+FF4E
U+FF4F
U+FF50
U+FF51
U+FF52
U+FF53
U+FF54
U+FF55
U+FF56
U+FF57
U+FF58
U+FF59
U+FF5A
U+FF5B
U+FF5C
U+FF5D
U+FF5E
U+FF5F
U+FF60
U+FF61
U+FF62
U+FF63
U+FF64
U+FF65
U+FF66
U+FF67
U+FF68
U+FF69
U+FF6A
U+FF6B
U+FF6C
U+FF6D
U+FF6E
U+FF6F
U+FF70
U+FF71
U+FF72
U+FF73
U+FF74
U+FF75
U+FF76
U+FF77
U+FF78
U+FF79
U+FF7A
U+FF7B
U+FF7C
U+FF7D
U+FF7E
ソU+FF7F
U+FF80
U+FF81
U+FF82
U+FF83
U+FF84
U+FF85
U+FF86
U+FF87
U+FF88
U+FF89
U+FF8A
U+FF8B
U+FF8C
U+FF8D
U+FF8E
U+FF8F
U+FF90
U+FF91
U+FF92
U+FF93
U+FF94
U+FF95
U+FF96
U+FF97
U+FF98
U+FF99
U+FF9A
U+FF9B
U+FF9C
U+FF9D
U+FF9E
U+FF9F
U+FFA0
U+FFA1
U+FFA2
U+FFA3
U+FFA4
U+FFA5
U+FFA6
U+FFA7
U+FFA8
U+FFA9
U+FFAA
U+FFAB
U+FFAC
U+FFAD
U+FFAE
U+FFAF
U+FFB0
U+FFB1
U+FFB2
U+FFB3
U+FFB4
U+FFB5
U+FFB6
U+FFB7
U+FFB8
U+FFB9
U+FFBA
U+FFBB
U+FFBC
U+FFBD
U+FFBE
U+FFC2
U+FFC3
U+FFC4
U+FFC5
U+FFC6
U+FFC7
U+FFCA
U+FFCB
U+FFCC
U+FFCD
U+FFCE
U+FFCF
U+FFD2
U+FFD3
U+FFD4
U+FFD5
U+FFD6
U+FFD7
U+FFDA
U+FFDB
U+FFDC
U+FFE0
U+FFE1
U+FFE2
U+FFE3
U+FFE4
U+FFE5
U+FFE6
U+FFE8
U+FFE9
U+FFEA
U+FFEB
U+FFEC
U+FFED
U+FFEE

全角和半角,是计算机中,中、日、韩文的CJKV字符的显示格式。
传统上,英语或拉丁字母语言使用的计算机系统,每一个字母或符号,都是使用一字节的空间(一字节由8比特组成,共256个编码空间)来储存;而汉语、日语及韩语文字,由于数量大大超过256个,故惯常使用两字节来储存一个字符。在使用等宽字体(如DOS、部分文字编辑器等)的环境下,中日韩文字此时占据两倍于西文字符的显示宽度。所以,中、日、韩等文字称为全角字符,相比起来,拉丁字母或数字就称为半角字符。有时为了使字体看起来齐整,英文字母、数字及其他符号也由原来只占一个字空间,改为占用两个字的空间显示、使用两个字节储存的格式。
JIS X 0201编码表把日语的片假名放进一字节的空间,故又称为“半角片假名”。