Python 的 `struct` 字节大小计算

Question

Unfortunately I don't understand the byte size calculation of the struct python module. I usethis documentation when encoding my values.

import struct

struct.calcsize('H') # == 2
struct.calcsize('d') # == 8

but

struct.calcsize('Hd') # == 16 != 8+2

using the encoding together requires 16 bytes instead of 10

What could be/is the reason for this? Thanks!

Answer 1

Maybe this can help; Python struct giving incorrect length

struct.calcsize('=Hd')