文章标题

python 命令行参数交互

import argparseimport pprintimport sysdef parse_arg:    parser = argparse.ArgumentParser(description = 'this is ')    parser.add_argument('--p', dest='param', -help='this is how to use param', -type=str)    args = argparse.parse_args()    if len(sys.argv) == 1:    #sys.argv[0] is the path of this python script    #pprint object    pprint.pprint(arg)    print arg.param    return args