本文共 1032 字，大约阅读时间需要 3 分钟。

windows API

from ctypes import windll kernel32 = windll.kernel32

官方说法：允许python去调用DLLs和共享库中的c函数。 ctypes is a foreign function library for Python. It provides C compatible data types, and allows calling functions in DLLs or shared libraries. It can be used to wrap these libraries in pure Python

linux

python中如何使用c的动态链接库 from ctypes import * libc = CDLL(“libc.so.6”) libc

windows

libc = cdll.msvcrt

Structures and unions must derive from the Structure and Union base classes which are defined in the ctypes module. Each subclass must define a fields attribute. fields must be a list of 2-tuples, containing a field name and a field type

from ctypes import *

class POINT(Structure):

… fields = [(“x”, c_int),

… (“y”, c_int)]

…

point = POINT(10, 20)

print point.x, point.y

10 20

point = POINT(y=5)

print point.x, point.y

0 5

from ctypes import pointer

i = c_int(42)

pi = pointer(i) print pi.contents

Note that ctypes does not have OOR (original object return), it constructs a new, equivalent object each time you retrieve an attribute: