Python 函数

def abc(test):
    print "hello %s"%test
abc("brid")
def say (a,*args):
    print a, args
say("hello","zha","ab")
def say (a,**args):
    print a, args
say ("hello",name=20,age=21)
def say (word='hello'):
    print word
say("hi")
def say (a,b='c'):
    print a ,b
    return  'bye'
say("hello")
def count():
    for i in range(1,10):
         if i == 5 :
            return
         else:
             print i
count()