函数调用

#!/usr/bin/python
def Cube(x=None,y=None,z=None):
        if x==None:
                x=1
        if y==None:
                y=2
        if z==None:
                z=3
        return (x+y-z)**3

l=Cube(3,5,1)
print l

转载于:https://www.cnblogs.com/djcsch2001/archive/2011/04/23/2025930.html