代碼中的STRUCT_ARRAY應該是指向指針數組的指針,而不是指向數組中元素的指針,因為您要將STRUCT_2指針附加到數組.

在c中,STRUCT_ARRAY可以定義為* STRUCT_2 [length],也就是STRUCT_2指針的數組

import ctypes

from random import randint

class STRUCT_2(ctypes.Structure):

#_pack_=2

_fields_ = [('field_1', ctypes.c_short),

('field_2', ctypes.c_short),

('field_3', ctypes.c_short),

('field_4', ctypes.c_short),

('field_5', ctypes.c_short),

('field_6', ctypes.c_short),

('field_7', ctypes.c_short),

('field_8', ctypes.c_short)]

class STRUCT_1(ctypes.Structure):

#_pack_=2

_fields_ = [('elements', ctypes.c_short),

#an array of pointers

('STRUCT_ARRAY', ctypes.POINTER(ctypes.POINTER(STRUCT_2)))]

def __init__(self,num_of_structs):

elems = (ctypes.POINTER(STRUCT_2) * num_of_structs)()

self.STRUCT_ARRAY = ctypes.cast(elems,ctypes.POINTER(ctypes.POINTER(STRUCT_2)))

self.elements = num_of_structs

for num in range(0,num_of_structs):

self.STRUCT_ARRAY[num].field_1 = 1

self.STRUCT_ARRAY[num].field_2 = 2

self.STRUCT_ARRAY[num].field_3 = 3

for num in range(0,100):

test = STRUCT_1(num)

print("%i done" % num)

如果你想要的是一個結構數組,請使用以下代碼：

import ctypes

from random import randint

class STRUCT_2(ctypes.Structure):

#_pack_=2

_fields_ = [('field_1', ctypes.c_short),

('field_2', ctypes.c_short),

('field_3', ctypes.c_short),

('field_4', ctypes.c_short),

('field_5', ctypes.c_short),

('field_6', ctypes.c_short),

('field_7', ctypes.c_short),

('field_8', ctypes.c_short)]

class STRUCT_1(ctypes.Structure):

#_pack_=2

_fields_ = [('elements', ctypes.c_short),

#an array of structs

('STRUCT_ARRAY', ctypes.POINTER(STRUCT_2))]

def __init__(self,num_of_structs):

elems = (STRUCT_2 * num_of_structs)()

self.STRUCT_ARRAY = ctypes.cast(elems,ctypes.POINTER(STRUCT_2))

self.elements = num_of_structs

for num in range(0,num_of_structs):

self.STRUCT_ARRAY[num].field_1 = 1

self.STRUCT_ARRAY[num].field_2 = 2

self.STRUCT_ARRAY[num].field_3 = 3

self.STRUCT_ARRAY[num].field_4 = 4

for num in range(0,100):

test = STRUCT_1(num)

print("%i done" % num)

總結

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