函数实现 多个数据求平均值

def average(*args):
    print(args)
    # (1, 2, 3)
    # (1, 2, 3)
    print(len(args))
    # 3
    # 3
    print(sum(args, 0.0) / len(args))

average(*[1, 2, 3])
# 2.0
average(1, 2, 3)
# 2.0