3.12python作业

# 3-1
names = ['James', 'Trump', 'Mike', 'John']
print(names[0])
print(names[1])
print(names[2])
print(names[-1])


# 3-4
names = ['James', 'Trump', 'John']
print(names[0] + ', I invite you to my dinner. Would you come?')
print(names[1] + ', I invite you to my dinner. Would you come?')
print(names[2] + ', I invite you to my dinner. Would you come?')


# 3-5
print("I am sorry to hear that John can't come to my dinner. So I invite another one.")
names[2] = 'Mike'
print(names[0] + ', I invite you to my dinner. Would you come?')
print(names[1] + ', I invite you to my dinner. Would you come?')
print(names[2] + ', I invite you to my dinner. Would you come?')

# 3-8
places = ['America', 'Hong Kong', 'Britain', 'Japan', 'Canada']
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)


# 3-11
list = [1,2,3,4]
print(list[4])