$ex18.py 源码
# 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'.")
def Iove(*argss):
args1, args2, args3, args4 = argss
print ("%s %s %s %s" % (args1, args2, args3, args4))
print_two("Zed","Shaw")
print_two_again("Zed","Shaw")
print_one("First!")
print_none()
Iove("I", "Love", "You", "!")
输出结果：
arg1: 'Zed', arg2: 'Shaw'
arg1: 'Zed', arg2: 'Shaw'
arg1: 'First!'
I got nothin'.
I Love You !
使用def关键字定义函数
