第三周作业

5-2

a = 'Abc'
print("Is a == 'Abc'? I predict True")
print(a == 'Abc')

print("Is a.lower() == 'Abc'? I predict False")
print(a.lower() == 'Abc')

b = 1
c = 2
print("Is b >= c? I predict False")
print(b >= c)

print("Is b < c and c > 0? I predict True")
print(b < c and c > 0)

print("Is b < c or b <= 0? I predict True")
print(b < c or b <= 0)

d = 'D'
e = ['A', 'B', 'C', 'D']
print("Is d in e? I predict True")
print(d in e)

f = 'F'
print("Is f in e? I predict False")
print(f in e)

5-6

age = 20

if age < 2 and age > 0:
    print("You are an infant.")
elif age < 4:
    print("You are an toddler")
elif age < 13:
    print("You are a child")
elif age < 20:
    print("You are a teenager")
elif age < 65:
    print("You are an adult")
else:
    print("You are an elder")

5-7

favorite_fruits = ['apple', 'pear', 'banana']

if 'apple' in favorite_fruits:
    print("You really like apple")
if 'banana' in favorite_fruits:
    print("You really like banana")
if 'pear' in favorite_fruits:
    print("You really like pear")
if 'pineapple' in favorite_fruits:
    print("You really like pineapple")
if 'watermelon' in favorite_fruits:
    print("You really like watermelon")

5-9

users = ['admin', 'Algernon', 'Steve', 'George', 'Antetokounmpo']
users.clear()

name = 'Algernon'


if name == 'admin':
    print("Hello admin, would you like to see a status report?")
elif name in users:
    print("Hello " + name + ", thank you for logging in again")
else:
    print("We need to find some users!")

6-2

numbers = {'Curry': 30, 'Klay': 11, 'Durant': 35, 'Livingston': 34, 'Young': 6}
for name, number in numbers.items():
    print(name + " love the number " + str(number))

6-5

rivers = {'nile': 'egypt', 'changjiang river': 'china', 'mississippi river': 'america'}

for river, contry in rivers.items():
    print("The " + river.title() + " runs through " + contry.title())

for river in rivers.keys():
    print(river.title())

for contry in rivers.values():
    print(contry.title())

6-7

stu1 = {'name': 'A', 'score': 90}
stu2 = {'name': 'B', 'score': 89}
stu3 = {'name': 'C', 'score': 91}
people = [stu1, stu2, stu3]
for stu in people:
    print(stu['name'] + "  score: " + str(stu['score']))

6-10

numbers = {'Curry': [30, 3], 'Klay': [11, 3], 'Durant': [35, 3, 2], 'Livingston': [34, 2], 'Young': [6, 2, 0]}
for name, numbers in numbers.items():
    print(name + " love the numbers:", end=' ')
    for number in numbers:
        print(number, end=', ')
    print()

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