ascii table

以你之姓@ 2022-04-18 05:03 108阅读 0赞

Dec  = Decimal Value
    Char = Character
    
    '5' has the int value 53
    if we write '5'-'0' it evaluates to 53-48, or the int 5
    if we write char c = 'B'+32; then c stores 'b'
    
    
    Dec  Char                           Dec  Char     Dec  Char     Dec  Char
    ---------                           ---------     ---------     ----------
      0  NUL (null)                      32  SPACE     64  @         96  `
      1  SOH (start of heading)          33  !         65  A         97  a
      2  STX (start of text)             34  "         66  B         98  b
      3  ETX (end of text)               35  #         67  C         99  c
      4  EOT (end of transmission)       36  $         68  D        100  d
      5  ENQ (enquiry)                   37  %         69  E        101  e
      6  ACK (acknowledge)               38  &     70  F        102  f
      7  BEL (bell)                      39  '         71  G        103  g
      8  BS  (backspace)                 40  (         72  H        104  h
      9  TAB (horizontal tab)            41  )         73  I        105  i
     10  LF  (NL line feed, new line)    42  *         74  J        106  j
     11  VT  (vertical tab)              43  +         75  K        107  k
     12  FF  (NP form feed, new page)    44  ,         76  L        108  l
     13  CR  (carriage return)           45  -         77  M        109  m
     14  SO  (shift out)                 46  .         78  N        110  n
     15  SI  (shift in)                  47  /         79  O        111  o
     16  DLE (data link escape)          48  0         80  P        112  p
     17  DC1 (device control 1)          49  1         81  Q        113  q
     18  DC2 (device control 2)          50  2         82  R        114  r
     19  DC3 (device control 3)          51  3         83  S        115  s
     20  DC4 (device control 4)          52  4         84  T        116  t
     21  NAK (negative acknowledge)      53  5         85  U        117  u
     22  SYN (synchronous idle)          54  6         86  V        118  v
     23  ETB (end of trans. block)       55  7         87  W        119  w
     24  CAN (cancel)                    56  8         88  X        120  x
     25  EM  (end of medium)             57  9         89  Y        121  y
     26  SUB (substitute)                58  :         90  Z        122  z
     27  ESC (escape)                    59  ;         91  [        123  {
     28  FS  (file separator)            60  <      92  \        124  |
     29  GS  (group separator)           61  =         93  ]        125  }
     30  RS  (record separator)          62  >      94  ^        126  ~
     31  US  (unit separator)            63  ?         95  _        127  DEL