Python 3.3 Unpacking Argument Lists

def output(*a , s=","):
 return s.join(a)

l = {"10", "20", "30"}
print(output(*l,s="/"))

def output(a, b, c):
 print(a)
 print(b)
 print(c)

l = {"a":"10", "b":"20", "c":"30"}
output(**l)

參考資料：
http://docs.python.org/3/tutorial/controlflow.html#unpacking-argument-lists