Python---function---variable parameters

Source: Internet
Author: User
# variadic # In a Python function, you can also define a mutable parameter # as the name implies, the variable parameter is the number of arguments passed in is variable, can be one, 2 to any, or 0 def calc (*numbers): result = 0 for n in numb Ers:result = result + N * N return resultprint (Calc (1, 2, 3)) Print (Calc ()) # A list or tuple that calls a mutable parameter # python allows the Li St or tuple preceded by an * number, the elements of the list or tuple into a variable parameter passed in nums = [1, 2, 3]print (' Print calc (*nums) ', Calc (*nums)) # * Nums means to pass all the elements of the list nums as mutable arguments # This is very useful and very common


Python---function---variable parameters

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