4-1
pizzas=["super supreme",'hawaiian','black pepper beef','seafood super supreme','fruit pizza']
for pizza in pizzas:
?? ?print(f"I like {pizza} pizza.")
print("I really love pizza!")
?
4-2
animals=["cat","lion",'tiger']
for animal in animals:
?? ?print(animal)
for animal in animals:
?? ?print(f"A {animal} moves fast.")
print("Any of these animals would move fast!")
?
?
4-3
for value in range(1,21):
?? ?print(value)
?
?
4-4
for value in range(1,1_000_001):
?? ?print(value)
?
?（从1到1,000,000）
4-5
a=min(range(1,1_000_001))
print(a)
b=max(range(1,1_000_001))
print(b)
print(sum(range(1,1_000_001)))
4-6
odds=list(range(1,21,2,))
for odd in odds:
?? ?print(odd)
?
?
4-7
Numbers=list(range(3,31,3))
for Number in Numbers:
?? ?print(Number)
?
4-8
cube=list(value**3 for value in range(1,11))
for a in cube:
?? ?print(a)
?
?
4-9
cube=list(value**3 for value in range(1,11))
?
4-10
#用的4-1
pizzas=["super supreme",'hawaiian','black pepper beef','seafood super supreme','fruit pizza']
for pizza in pizzas:
?? ?print(f"I like {pizza} pizza.")
print("I really love pizza!")
print("The first three items in the list are:",pizzas[:3])
print("Three items from the middle of the list are:",pizzas[1:4])
print("The last three items in the list are:",pizzas[-3:])
?
?
4-11
#来源于4-1
pizzas=["super supreme",'hawaiian','black pepper beef','seafood super supreme','fruit pizza']
friend_pizzas=pizzas[:]
pizzas.append('bacon pizza')
friend_pizzas.append('chicken pizza')
print("My favorite pizzas are:")
for pizza in pizzas:
?? ?print('\t'+pizza)
print("My friend's favorite pizzas are:")
for pizza in friend_pizzas:
?? ?print("\t"+pizza)
?
4-12
my_foods = ['pizza', 'falafel', 'carrot cake']
friend_foods = my_foods[:]
my_foods.append('cannoli')
friend_foods.append('ice cream')
print("My favorite foods are:")
for i in my_foods:
? ? print("\t"+i)
print("\nMy friend's favorite foods are:")
for i in friend_foods:
? ? print("\t"+i)
?
?4-13
foods=('burger','fries','ramen','bubble tea','fried chicken')
for food in foods:
?? ?print(food)
#第二个要求为foods[0]?? ?='pizza',结果报错
print('\n')
newfoods=('burger','hotpot','ramen','bubble tea','malatang')
for newfood in newfoods:
?? ?print(newfood)
?
?
?
?
?
?