python命令行传参详解，optparse模块OptionParse类的学习

官网链接：https://docs.python.org/3/library/optparse.html

 https://docs.python.org/2/library/argparse.html

from optparse import OptionParser
parser = OptionParser()
parser.add_option("-f", "--file", dest="filename",
                  help="write report to FILE", metavar="FILE")
(options, args) = parser.parse_args()
print(options,type(options),args，type(args))   #print(type([]))  结果：<class "list">