function_varargs.py

# -*-coding:utf-8-*-
import os
from math import fabs
from math import fsum


# def total(a=5, *numbers, **tuples):
# print("a=", a)
# for numberitem in numbers:
# print("numberitem[{}]={}".format(numbers.index(numberitem), numberitem))
#
# for tupleitem1, tupleitem2 in tuples.items():
# print(tupleitem1, tupleitem2)
#
#
# print(os.getcwd())
# print(fabs(-16))
# print(fsum([1, 2, 3, -5]))
# if __name__ == "__main__":
# print("内部自己调用了")
# print(total(10, 1, 2, 3, 4, 5, Jack=1123, John=2231, Inge=1560))
# else:
# print("被外部调用了")

def greet_users(names):
 print(names)
 """向列表中的每位用户都发出简单的问候"""
 for name in names:
 msg = "Hello, " + name.title() + "!"
 print(msg)
usernames = ['hannah', 'ty', 'margot']
greet_users(usernames)