第二週作業（書本3,4章）

3-1

#coding:gbk
#3-1姓名,3-2問候語

names = ['Johnny', 'Tom', 'Jerry', 'Timmy']
for name in names:
	#print(name)
	print('Hello ' + name + '!')
	

3-4~3-7

#coding:gbk

#3-4嘉賓名單
guests = ['Johnny', 'Tom', 'Jerry', 'Timmy']
for guest in guests:
	print('Invite ' + guest + ' to have dinner together.')

#3-5修改嘉賓名單
print('\nJerry have no time.' )
guests[2] = 'Lily'
for guest in guests:
	print('Invite ' + guest + ' to have dinner together.')
	
#3-6添加嘉賓
print('\nAnother bigger table has been found, so we can invite more guests')
guests.insert(0, 'Blue')
guests.insert(0, 'White')
guests.insert(0, 'Black')

for guest in guests:
	print('Welcome, ' + guest + '!')

#3-7縮減名單
print('\nThe new table is not available')
while len(guests) > 2:
	a = guests.pop()
	print(a + ', Sorry')
	
for guest in guests:
	print('Welcome, ' + guest + '!')

del guests[0]
del guests[0]

3-8

#coding:gbk
#3-8放眼世界
places = ['Shanghai', 'Beijing', 'Xiamen', 'Dandong', 'Hangzhou']
print(places)
print(sorted(places))
print(places)
print(sorted(places, reverse = True))
print(places)
places.reverse()
print(places)
places.reverse()
print(places)
places.sort()
print(places)
places.sort(reverse = True)
print(places)

4-1

#coding:gbk
#4-1披薩
pizzas = ['p1', 'p2', 'p3']
for pizza in pizzas:
	print(pizza, end = ' ')
print('\n')
	
for pizza in pizzas:
	print('I like ' + pizza + ' !')
	
print('I really love pizza!\n')

#4-11披薩2
friend_pizzas = pizzas[:]
pizzas.append('p5')
friend_pizzas.append('p4')

print('My favorite pizzas are:')
for pizza in pizzas:
	print(pizza, end = ' ')

print("\nMy friend's favorite pizzas are:")
for pizza in friend_pizzas:
	print(pizza, end = ' ')

4-3

#coding:gbk
#4-3數到20
for num in range(1 , 21):
	print(num, end = ' ')
	

4-4

#coding:gbk
#4-4一百萬
a = range(1, 1000001)
for num in a:
	print(num)

4-5

#coding:gbk
#4-5計算1~1000 000的總和

a = range(1, 1000001)
print(min(a))
print(max(a))
print(sum(a))

4-6

#coding:gbk
#4-6奇數
a = range(1, 21, 2)
for num in a:
	print(num, end = ' ')

4-7

#coding:gbk
#4-7 3的倍數
a = range(3, 31, 3)
for num in a:
	print(num, end = ' ')

4-8

#coding:gbk
#4-8立方

a = []

for value in range(1, 11):
	a.append(value**3)
	
for num in a:
	print(num, end = ' ')

4-9

#coding:gbk
#4-9列表解析
a = [value**3 for value in range(1, 11)]
print(a)

4-10

#coding:gbk
#4-10 切片

a = [value**3 for value in range(1, 11)]

print('The first three items in the list are:')
print(a[0:2])

print('Three items from the middle of the list are:')
print(a[4:7])

print('The last three items in the list are:')
print(a[-3:])

4-13

#coding:gbk
#4-13自助餐

foods = ('米飯', '餃子', '章魚小丸子', '麻辣燙', '魚香肉絲')

for food in foods:
	print(food)

print('\n')	
#foods[0] = '白粥'

foods = ('白粥', '蝦餃', '章魚小丸子', '麻辣燙', '魚香肉絲')
for food in foods:
	print(food)