>>693
from ctypes import *
class aa(Structure):
_fields_ = [('a', c_uint32), ('b', POINTER(c_uint16))]

a = aa()
a.a # 0
a.b # <__main__.LP_c_ushort object at 0x000002033996A340>
a.__sizeof__() # 104
sizeof(a) # 16
a.b = (c_uint16 * 4)(9,8,7,6)
a.b # <__main__.LP_c_ushort object at 0x000002033996AAC0>
a.__sizeof__() # 104
sizeof(a) # 16

だめやん