Python星号*与**用法分析

def multiple(arg, *args):
  print "arg: ", arg
  #打印不定长参数
  for value in args:
    print "other args:", value
if __name__ == '__main__':
  multiple(1,'a',True)

def multiple2(**args):
  #打印不定长参数
  for key in args:
    print key + ":" + bytes(args[key])
if __name__ == '__main__':
  multiple2(name='Amy', age=12, single=True)

def multiple(arg, *args, **dictargs):
  print "arg: ", arg
  #打印args
  for value in args:
    print "other args:", value
  #打印dict类型的不定长参数 args
  for key in dictargs:
    print "dictargs:" + key + ":" + bytes(dictargs[key])
if __name__ == '__main__':
  multiple(1,'a',True, name='Amy',age=12, )

> 2*4
8
> 2**4
16
>