func_param.py

《python编程金典》书中

#!/usr/bin/python
# Filename: func_param.py

def printMax(a, b):
    if a > b:
        print a, 'is maximum'
    else:
        print b, 'is maximum'

printMax(3, 4) # directly give literal values

x = 5
y = 7

printMax(x, y) # give variables as arguments