Python 调用DLL操作抄表机

# -*- coding: gbk -*-
from ctypes import *

dll = windll.loadlibrary('jba188.dll')
a = dll.test()
print '测试设备连接状态%s' % a

srcname = c_char_p("publish_pd.bin")
decname = c_char_p('d:\\publish_pd.bin')
b = dll.upfile(srcname,decname)
print '将文件上传至计算机%s' % b

pstr = c_char_p()
pstr.value = ''
c = dll.getdatetime(pstr);
print '读取抄表机时间%s' % c
print pst