python如何判断操作系统类型

#!/usr/bin/env python
#
import platform
def TestPlatform():
    print ("----------Operation System--------------------------")
    #Windows will be : (32bit, WindowsPE)
    #linux will be : (32bit, ELF)
    print(platform.architecture())
    #Windows will be : Windows-XP-5.1.2600-SP3 or Windows-post2008Server-6.1.7600
    #Linux will be : Linux-2.6.18-128.el5-i686-with-redhat-5.3-Final
    print(platform.platform())
    #Windows will be : Windows
    #Linux will be : Linux
    print(platform.system())
    print ("--------------Python Version-------------------------")
    #Windows and Linux will be : 3.1.1 or 3.1.3
    print(platform.python_version())
def UsePlatform():
  sysstr = platform.system()
  if(sysstr =="Windows"):
    print ("Call Windows tasks")
  elif(sysstr == "Linux"):
    print ("Call Linux tasks")
  else:
    print ("Other System tasks")

# 调用函数
UsePlatform()