笨办法学python3练习代码ex18.py

 #命名、变量、代码、函数
 #this one is like your scripts with argv
 def print_two(*args):
     arg1, arg2 = args                       #将参数解包
     print(f"arg1: {arg1}, arg2: {arg2}")
 '''
 （*args） 里面*的意思：告诉Python把所有的参数都接收进来，放到名叫args的列表中去
 ''' 

 #ok,that's *agrs is actually pointless（无意义的）,we can just do this
 def print_two_again(arg1, arg2):
     print(f"arg1: {arg1}, arg2: {arg2}")

 #this just takes one argument
 def print_one(arg1):
     print(f"arg1: {arg1}")

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

 print_two("Zed","Shaw")     #不带引号会出错，但是数字可以不带引号
 print_two_again("Zed","Shaw")
 print_one("First!")
 print_none()