python获取参数的写法

import getopt

optargs = sys.argv[1:]

try:

opts, args = getopt.getopt(optargs, "f:b:r:", ["file=", "backdays=", "region="])

except getopt.GetoptError as err:

sys.stderr.write("[ERROR] Invalid Syntax\n")

sys.exit(1)

for opt, arg in opts:

if opt in ("-f", "--file"):

pnl_file = arg

elif opt in ("-b", "--backdays"):

backdays = int(arg)

elif opt in ("-r", "--region="):

region = arg