import getopt

 import sys

 def usage():

     print 'this is a usage.'

 def main():

     try:

         print sys.argv

         #sys.argv[0],表示文件路径，sys.argv[1:]，表示用户输入所有参数

         #hp:i, 带有:表示需要跟参数，后面的长参数需要带‘=’

         options,args = getopt.getopt(sys.argv[1:],"hp:i:",["help","ip=","port="])

         print 'options:',options

         print 'args:',args

     except getopt.GetoptError:

         sys.exit()

     print '--------------------'

     for name,value in options:

         if name in ("-h","--help"):

             usage()

     if name in ("-i","--ip"):

         print 'ip is----',value

     if name in ("-p","--port"):

         print 'port is----',value

 if __name__ == "__main__":

     main()