python:practice function return

def add(*args):

   sum=0

   for i in args:

     sum+=i

  add(1,2,3,4)

print(add)  # nano

def add(*args):

   sum=0

   for i in args:

     sum+=i

return sum,123,[1,2,3]

  add(1,2,3,4)

print

notice

  if return multiple -object  will be wrapper as a tulpe to result

attention:

function if no set return defaoult return None