Question

在Python中如何获取命令行参数

Answer 1

• import sys

• import getopt

• def usage():

• print ("sys.argv[0]: '-a aa -b bb -c cc'")

• print ("sys.argv[0]: ' -h'")

• def db_get_args():

• try:

• opts,args = getopt.getopt(sys.argv[1:], "ha:b:c:")

• except getopt.GetoptError,err:

• print str(err)

• usage()

• sys.exit(1)

• if len(opts) == 3:

• for op,value in opts:

• if(op == "-h"):

• usage()

• sys.exit(1)

• elif(op == "-a"):

• aa = value

• elif(op == "-b"):

• bb = value

• elif(op == "-c"):

• cc = value

• else:

• usage()

• sys.exit(1)

• else:

• usage()

• sys.exit(1)

• return aa,bb,cc

• aa,bb,cc = db_get_args()

• print aa,bb,cc