【Python】Learn Python the hard way, ex18 def函数

# this one is like your scripts with argv
def print_two(*args):
arg1, arg2 = args
print "arg1: %r ,arg2: %r" % (arg1, arg2)

# ok, that *args is actually pointless, we can just do this
def print_two_again(arg1, arg2):
print "arg1: %r, arg2: %r" % (arg1, arg2)

# this just takes one argument
def print_one(arg1):
print "arg1: %r" % arg1

# this one takes no arguments
def print_none():
print "I got nothin'."

print_two("Hong","Qi")
print_two_again("Hong","Qi")
print_one("First!")
print_none()

'''
Test Result:

arg1: 'Hong' ,arg2: 'Qi'
arg1: 'Hong', arg2: 'Qi'
arg1: 'First!'
I got nothin'.
'''