4-1 比萨
pizzas = ['pepperoni pizza', 'beef pizza', 'chicken pizza']
for pizza in pizzas:
print(pizza)
for pizza in pizzas:
print("I like " + pizza + ".")
print("I really love pizza!")
输出
pepperoni pizzabeef pizzachicken pizzaI like pepperoni pizza.I like beef pizza.I like chicken pizza.I really love pizza!
4-2 动物
animals = ['dog', 'cat', 'monkey']for animal in animals: print(animal)for animal in animals: print("A " + animal + " would make a great pet.")print("Any of these animals would make a great pet!")
输出
dogcatmonkeyA dog would make a great pet.A cat would make a great pet.A monkey would make a great pet.Any of these animals would make a great pet!
4-3 数到20
for i in range(1,21): print(i)输出
1234567891011121314151617181920
4-5 计算1～1 000 000的总和
number =[]for i in range(1,1000001): number.append(i)print("The minimum of list is " + str(min(number)))print("The maximum of list is " + str(max(number)))print("The sum of list is " + str(sum(number)))
输出
The minimum of list is 1The maximum of list is 1000000The sum of list is 500000500000[Finished in 0.3s]
4-6 奇数
numbers =[]for i in range(1,21,2): numbers.append(i)for number in numbers: print(number)
输出
135791113151719
4-7 3的倍数
numbers =[]for i in range(3,31,3): numbers.append(i)for number in numbers: print(number)
输出
36912151821242730
4-8 立方
numbers =[]for i in range(1,11): numbers.append(i**3)for number in numbers: print(number)
输出
1827641252163435127291000
4-9 立方解析
numbers =[value**3 for value in range(1,11)]for number in numbers: print(number)
输出
1827641252163435127291000
4-10 切片
numbers =[value**3 for value in range(1,11)]for number in numbers: print(number)print("The first three items in the list are: ")for value in numbers[:3]: print(value)print("Three items from the middle of the list arez: ")for value in numbers[4:7]: print(value)print("The last three items in the list are: ")for value in numbers[-3:]: print(value)
输出
1827641252163435127291000The first three items in the list are: 1827Three items from the middle of the list arez: 125216343The last three items in the list are: 5127291000
4-11 你的比萨和我的比萨
pizzas = ['pepperoni pizza', 'beef pizza', 'chicken pizza']for pizza in pizzas: print(pizza)for pizza in pizzas: print("I like " + pizza + ".")print("I really love pizza!")friend_pizzas = pizzas[:]pizzas.append('fruit pizza')friend_pizzas.append('sea pizza')print("My favorite pizzas are:")for pizza in pizzas: print(pizza)print("My friend\'s favorite pizzas are: ")for pizza in friend_pizzas: print(pizza)
输出
pepperoni pizzabeef pizzachicken pizzaI like pepperoni pizza.I like beef pizza.I like chicken pizza.I really love pizza!My favorite pizzas are:pepperoni pizzabeef pizzachicken pizzafruit pizzaMy friend's favorite pizzas are: pepperoni pizzabeef pizzachicken pizzasea pizza
4-12 使用多个循环
my_foods = ['pizza', 'falafel', 'carrot cake'] friend_foods = my_foods[:]print("My favorite foods are:") for food in my_foods: print(food)print("\nMy friend's favorite foods are:") for food in friend_foods: print(food)
输出
My favorite foods are:pizzafalafelcarrot cakeMy friend's favorite foods are:pizzafalafelcarrot cake