Python symbol, >>: Shift right, <<: Shift left, &: Bitwise AND, |: Bitwise OR (& and actual applied odd even number to judge,>> right displacement can be used to calculate file size)

shift Right (>>): 1001->100 Right Move one is binary code remove a

3 >> 1

Out:1

Bin (3): 11

Bin (1): 1

A >> B

A/(2 * * B): Can be used to calculate file size, such as 2048B file 2048 >>->2m 2048/(2 * 10) = 2

shift Left (<<): 1001->10010 left one is to add a 0 in the last digit of the binary code

3 << 1

Out:6

Bin (3): 11

Bin (6): 110

A << B

A * (2 * * B)

Bitwise-AND

& 0

Bin (10): 1010

Bin (20): 10100

Bitwise OR

10 | 30

Bin (10): 1010

Bin (20): 10100

Bin (30): 11110

Practical application

& Odd even judgment

4 & 1, 0 even

5 & 1, 1 odd

Python symbol, >>: Shift right, <<: Shift left, &: Bitwise AND, |: Bitwise OR (& and actual applied odd even number to judge,>> right displacement can be used to calculate file size)