python 调用C DLL库 传参（传递数字、字符串、数组（一维、二维）、结构体）

#!/usr/bin/env python
#conding=utf-8


from itertools import filterfalse
import PySimpleGUI as sg
from ctypes import cdll
from ctypes import *
from threading import Thread
import time

from PySimpleGUI.PySimpleGUI import P, PROGRESS_BAR_STYLES, T, Print

#m6e
#a = cdll.LoadLibrary(r'D:\share\first_party\python\MAC\Dll32_python.dll')
a = cdll.LoadLibrary(r'E:\salman_备份\客户资料主目录\delphi\2019\UHFReader\Debug\UHFReader.dll')

# #fun.restype  = c_float #设置返回值类型为 float
# #a.argtypes = (c_int, c_int,c_int,c_void_p)
# TrueAndFalse=False
# # a.get_T.restype =c_float
# # getT=0
# # def recv_message():
# #     global TrueAndFalse
# #     global getT
# #     while True:
# #         time.sleep(2)r
# #         while TrueAndFalse:
# #             getT=round(a.get_T(),3)
# #             #print("getT:",str(getT))




if __name__ == '__main__':
    #main()
    a = cdll.LoadLibrary(r'E:\salman_备份\客户资料主目录\delphi\2019\UHFReader\Debug\UHFReader.dll')
    ok=a.reader_open_tcp(bytes("tcp://192.168.8.4:8086",encoding="utf-8"))  


    intPara = c_int(9)     #int *变量
    count = c_int(9)     #int *变量
    a.reader_readpower_get(byref(intPara))   #传参      
    print (intPara.value)      #输出读取功率  3000
    print(ok)


    buf = create_string_buffer('hello'.encode('gbk'))


    #int reader_read_tag(int time, char* str, int* count)
    a.reader_read_tag(2000, buf, byref(count))
    print(count.value)
    print(buf.value)