函数

#coding=utf-8import time;def getstr():    return "aa"def getNum():    a=1    b=2    return a+bdef getLocalTime():    tm=time.strftime('%Y-%m-%d %H:%M:%S',time.localtime())    return tm#缺省参数def test(v1,v2=1):    print v1,v2    return#不定长参数def test1(v1,*v2):    print v1    for s in v2:        print s        return#lambda表达式suma=lambda arg1,arg2:arg1+arg2;'''str=getstr()print str''''''num=getNum()print num''''''tm=getLocalTime()print tm'''# test('haha')# lt=[1,2,3,4,5,6,7]# test1('haha',lt)# print suma(10,2)'''#filterlt=[1,2,3,4,5,6,7]nlt=filter(lambda x:x%2==0,lt)print nlt''''''#maplt=[1,2,3,4,5,6,7,8]nlt=map(lambda x:x+1,lt)print nlt''''''#reducelt=[1,2,3,4,5]print reduce(lambda x,y:x+y,lt)''''''#for..in..iflt=[1,2,3,4,5,6,7]print [x for x in lt if x%2==0]'''