ASCII Values For Capital Letters
A = 65
B = 66
C = 67
D = 68
E = 69
F = 70
G = 71
H = 72
I = 73
J = 74
K = 75
L = 76
M = 77
N = 78
O = 79
P = 80
Q = 81
R = 82
S = 83
T = 84
U = 85
V = 86
W = 87
X = 88
Y = 89
Z = 90
ASCII Values For Small Letters
a = 97
b = 98
c = 99
d = 100
e = 101
f = 102
g = 103
h = 104
i = 105
j = 106
k = 107
l = 108
m = 109
n = 110
o = 111
p = 112
q = 113
r = 114
s = 115
t = 116
u = 117
v = 118
w = 119
x = 120
y = 121
z = 122
ASCII
>>> ord('A')
65
>>> ord('Z')
90
>>> ord('a')
97
>>> ord('z')
122
Captital A-Z: 65 to 90
>>> l = ['r', 'u', 'd', 'r', 'a', 'n', 's', 'h']
>>> max(l)
'u'
>>> ord('u')
117
>>> min(l)
'a'
>>> ord('a')
97
>>> bin(65)
'0b1000001'
>>> bin(66)
'0b1000010'
>>>
|
Bit # |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
|
A |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
|
B |
0 |
1 |
0 |
0 |
0 |
0 |
1 |
0 |
One usecase of ASCII:
For storing in a memory of an 8 bit computer, we need to convert Alphabet to Decimal then Decimal to Binary.
A -> 65 -> 01000001
B -> 66 -> 01000010
ord() and chr()
- Here, ord() and chr() are built-ins.
- Ord(): gives you ASCII for the alphabet
- Chr(): gives you the alphabet for the ASCII
- >>> ord('A')
- 65
- >>> chr(65)
- 'A'
Unicode
Unicode, formally The Unicode Standard, is an information technology standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems.
|
Binary |
Base 2 |
0, 1 |
|
Decimal |
Base 10 |
0, 1, 2, 3, 4, 5, 6, 7, 8, 9 |
|
Hexadecimal |
Base 16 |
0-9 then A-F |
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