python中函数的几个小知识点
'''Created on 2011-9-29@author: xgzhao'''# variant parameters in function definitiondef fun(name, age=12, *rest):print name, ageprint # use dictionary as key parametersdef function(name, age=13, *rest, **dictionary):for d in dictionary.keys():print d #anonymity function: lambdatrue = lambda : Trueprint true()#provide the same functiondef add(x, y): return x+ylambda x, y : x+yprint map((lambda x:x+2), )
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