python--參數列表的分拆

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  當你要傳遞的參數已經是一個列表,調用的函數卻接受分開一個個的參數,這個時候可以考慮參數列表拆分:

  • 可以使用* 操作符來自動把參數列表拆開:

 

args=[3,6]x=list(range(*args))print x

-------------------輸出-----------------------------

[3, 4, 5]

 

  • 可以使用 ** 操作符分拆關鍵字參數為字典:

 

def parrot(voltage,state=‘a stiff‘,action=‘voom‘):    print "-- This parrot wouldn‘t ",action,    print "if you put ",voltage,"volts through it.",    print "E‘s",state,"!"    d={"voltage":"four million", "state":"bleedin demised","action":"voom"}parrot(**d)


-------------------輸出-----------------------------

-- This parrot wouldn‘t  voom if you put  four million volts through it. E‘s bleedin demised !

 

python--參數列表的分拆

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