python 执行文件时额外参数获取的实例

def usage():
  print(' * usage:')
  print(' *  -c [val] : exporter_conf filepath, default importer_conf.')
  print(' *  -h : print this.')
  print(' *  -z : 不需要确认参数，直接执行')


do_not_confirm = False

conf = ''
#c: [c+冒号表示-c 后面有参数，hz表示-h,-z后面没参数,如果此时在-h 100加上参数，那么这个100的值是获取不到的] 
opts, args = getopt.getopt(sys.argv[1:], 'c:hz') 
for op, value in opts:
  value = value.replace('\'', '').replace('\"', '')
  if op == '-c':
    conf = value
  elif op == '-h':
    usage()
    sys.exit()
  elif op == '-z':
    do_not_confirm = True