第四周的作业

7.3
num = int(input("Enter a number: ?"))
if num % 10 == 0:
    print("It's an integral multiple of 10.")
else:
    print("It's not an integral multiple of 10.")


7.5
while True:
    age = int(input("\nHow old are you ?\n "))
    if age <= 3:
        print("You are free.")
    elif age > 3 and age <= 12:
        print("You are charged $10.")
    else:
        print("You are charged $12.")


7.7
index = 0
while True:
    print(index)
    index = index + 1



8.1
def display_message():
    print("I learn function in this capter!")


display_message()


8.2
def favorite_book(title):
    print("One of my favorite books is " + title + "!")


favorite_book("Hello Python")


8.3
def make_shirt(size, message):
    print("The size of the shirt is " + str(size) + ", and the message on it is " + message + "!")


make_shirt(10, "Hello Python")