### Lab9-1 (ex9-1) ###

def take_attendance(classroom, who_is_here):
    """
    classroom, tuple
    who_is_here, tuple
    Checks if every item in classroom is in who_is_here
    And prints their name if so.
    Returns "finished taking attendance"
    """
    for kid in classroom:
        if kid in who_is_here:
            print(kid)
    return "finished taking attendance"



### Lab9-2 (ex9-2) ###

classroom = ("John", "Mary", "Jomes")
who_is_here = ("Mary", )

take_attendance(classroom, who_is_here)



### Lab9-3 ###

>>> print(take_attendance(classroom, who_is_here))



### Lab9-4 (ex9-3) ###

def hello():
    print("Hello!")

hello()

def sayHi(name, title):
    print(name + title + "你好!")

sayHi("王小明", "同學")



### Lab9-5 (ex9-4) ###

def sayHi(name, title):
    print(name + title + "你好!")

sayHi("王小明", title = "同學")
sayHi(title = "同學", name = "王小明")
sayHi(title = "同學", "王小明")



### Lab9-6 (ex9-5) ###

def get_word_length(word1, word2):
    word = word1 + word2
    return len(word)
    print("this never gets printed")

get_word_length("Hi!", "Python")



### Lab9-7 (ex9-6) ###

def get_word_length(word1, word2):
    word = word1 + word2
    return len(word)
    print("this never gets printed")

length1 = get_word_length("Rob", "Banks")
length2 = get_word_length("Barbie", "Kenn")
length3 = get_word_length("Holly", "Jolley")

print("One name is", length1, "letters long.")
print("Another name is", length2, "letters long.")
print("The final name is", length3, "letters long.")



### Lab9-8 (ex9-7) ###

def add_sub(n1, n2):
    add = n1 + n2
    sub = n1 - n2
    return (add, sub)

(a, b) = add_sub(3, 4)



### Lab9-9 (ex9-8) ###

# 有傳回值和沒有傳回值的函式
def say_name(kid):
    print(kid)
def show_kid(kid):
    return kid

say_name("Dora")
show_kid("Ellie")
print(say_name("Frank"))
print(show_kid("Gus"))



### Lab9-10 (ex9-9) ###

# 在主程式和函式中定義相同名稱的變數
def fairy_tale():
    peter = 5
    print(peter)

peter = 30
fairy_tale()
print(peter)



### Lab9-11 (ex9-10) ###

# 在函式內初始化變數
def e():
    v = 5
    print(v)

v = 1
e()



### Lab9-12 (ex9-11) ###

# 函式內部可存取外部主程式的變數
def f():
    print(v)

v= 1
f()



### Lab9-13 (ex9-12) ###

# 函式內部可讀取多個外部主程式的變數
def g():
    print(v + x)

v = 1
x = 2
g()



### Lab9-14 (ex9-13) ###

# 函式內部可讀取多個外部主程式的變數
def h():
    v += 5

v= 1
h()



### Lab9-15 (ex9-14) ###

# 同樣的變數名稱，不同的有效範圍
def odd_or_even(num):
    num = num%2
    if num == 1:
        return "odd"
    else:
        return "even"

num = 4
print(odd_or_even(num))
odd_or_even(5)



### Lab9-16 (ex9-15) ###

# 巢狀函式的例子：主程式中可以呼叫 sing()，不可直接呼叫 stop()
def sing():
    def stop(line):
        print("STOP", line)
    stop("it's hammer time")
    stop("in the name of love")
    stop("hey, what’s that sound")

sing()



### Lab9-17 (ex9-16) ###

# 將函式物件作為參數傳入另一個函式
def sandwich(kind_of_sandwich):
    print("--------")
    print(kind_of_sandwich())
    print("--------")
def blt():
    my_blt = " bacon\n lettuce\n tomato"
    return my_blt
def breakfast():
    my_ec = " eggegg\n cheese"
    return my_ec
print(sandwich(blt))



### Lab9-18 (ex9-17) ###

# 傳回函式物件
def grumpy():
    print("I am a grumpy cat:")
    def no_n_times(n):
        print("No", n, "times...")
        def no_m_more_times(m):
            print("...and no", m, "more times")
            for i in range(n + m):
                print("no")
        return no_m_more_times
    return no_n_times

grumpy()(4)(2)



### Lab9-19 ###

>>> print("no newline")

>>> print("yes newline\n")



### Lab9-20 (ex9-18) ###

# 移除換行符號
word = "bird\n"
print(word) 
word = word.replace("\n", "")
print(word)



### Lab9-21 (ex9-19) ###

# 從檔案裡讀取好友姓名及電話
def read_file(file):
    """
    file, a file object
    Starting from the first line, it reads every
    2 lines and stores them in a tuple.
    Starting from the second line, it reads every
    2 lines and stores them in a tuple.
    Returns a tuple of the two tuples.
    """
    first_every_2 = ()
    second_every_2 = ()
    line_count = 1

    for line in file:
        stripped_line = line.replace("\n","")

        if line_count % 2 == 1:
            first_every_2 += (stripped_line, )
        elif line_count % 2 == 0:
            second_every_2 += (stripped_line, )

        line_count += 1

    return (first_every_2, second_every_2)



### Lab9-22 (ex9-20) ###

# 移除電話號碼裡的空格、連字號、括號
def sanitize(some_tuple):
    """
    phones, a tuple of strings
    Removes all spaces, dashes, and open/closed parentheses
    in each string
    Returns a tuple with cleaned up string elements
    """
    clean_string = ()

    for st in some_tuple:
        st = st.replace(" ", "")
        st = st.replace("-", "")
        st = st.replace("(", "")
        st = st.replace(")", "")
        clean_string += (st, )

    return clean_string



### Lab9-23 (friend.txt) ###

# 好友姓名與電話號碼的測試檔 (friend.txt)
Ana
801-456-789
Ben
609 4567890
Cory
(206)-345-2619
Danny
6095648765



### Lab9-23 (ex9-21) ###

# 從檔案裡讀取好友姓名與電話號碼
friends_file = open("friends.txt")
(names, phones) = read_file(friends_file)
print(names)
print(phones)
clean_phones = sanitize(phones)
print(clean_phones)
friends_file.close()



### Lab9-24 (map_areacodes_states.txt) ###

# 區碼對應州別的測試檔 (map_areacodes_states.txt)

201
New Jersey
202
Washington D.C.
203
Connecticut
204
Canada – Manitoba