Python Learning--in-process conversion

Commonly used in the system include: binary, octal, decimal and hexadecimal, they are the difference between the number of operations is a few in a bit.

1. Decimal Turn binary

Command: Bin ()

A = 8print (Bin (a))

Operation Result:

0b1000

Calculation:

binary = decimal decimal + binary

8 1000

8/2 + 0 0 1 0 0 0

4/2 + 0 0 2^3 x1 + 2^2 x0 + 2^1 x0 + 2^0 x 0

2/2 + 0 0

1/2 more than 1

Results: 1000

2. Decimal to Octal

Command: Oct ()

A =print(Oct (a))

Operation Result:

0o22

Calculation:

octal = Decimal decimal = octal

Ditto: 8^1 x 2 + 8^0 x 2

3. Decimal Turn hex

Command: Hex ()

A =print(Hex (a))

Operation Result:

0x26

Calculation:

Hex: 1-9 a-f

decimal = hexadecimal hexadecimal = = Decimal

Ibid.: Ibid.: 16^1 x 2 + 16^0 x 6

38/16 + 6 6

2/16 + 2 2

Results: 26

4. Binary conversion decimal, octal, hex

command: Int ()

A = ' 11100 'print(' decimal:', int (a,2),' octal ', int (b,8), ' hexadecimal ', int (c,16))

Note: The converted variable format is: string format

Operation Result:

Decimal: 288 binary 46,726 binary 69888

5. Character conversion numeric numeric conversion character

Command: Ord () "must be a character" Chr () "must be a number" (Asill code)

# Number = = character (Asill code)A =print(Chr (a))#'n ' Print (Ord (b))

Operation Result:

N110

Python Learning--in-process conversion