COM是Microsoft的一项技术，它允许对象进行通信，而无需任何对象知道
有关对方的任何细节，甚至是其实施的语言。
# SimpleCOMServer.py - A sample COM server - almost as small as they come!
#
# We expose a single method in a Python COM object.
class PythonUtilities:_public_methods_ = [ 'SplitString' ]_reg_progid_ = "PythonDemos.Utilities"# NEVER copy the following ID# Use"print pythoncom.CreateGuid()" to make a new one._reg_clsid_ = "{81101F84-35ED-4CE4-8A06-E530828AA02A}"def SplitString(self, val, item=None):import stringif item != None:item = str(item)return str(val).split(item)# Add code so that when this script is run by# Python.exe,.it self-registers.
if __name__=='__main__':print("Registering COM server…")import win32com.server.registerwin32com.server.register.UseCommandLine(PythonUtilities)
import win32com.client as win32
msword = win32.Dispatch('PythonDemos.Utilities')
print(msword.SplitString('i have a pen'))
_public_methods_：暴露接口的列表
_reg_progid_：名称用于创建com对象，比如win32.Dispatch调用
_reg_clsid_：唯一id
SplitSring：暴露的函数，COM传递所有的字符通过Unicode，所以需要str（）转化
COM类包括注册的ProgID, CLSID，暴露一个SplitString函数，供com对象调用