3.19python作业

# 5-3
alien_color = 'green'
if alien_color == 'green':
    print('You get 5 points!')

# 5-4
alien_color = 'red'
if 'green' == alien_color:
    print('You get 5 points!')
else:
    print('You get 10 points!')

alien_color = 'green'
if 'green' == alien_color:
    print('You get 5 points!')
else:
    print('You get 10 points!')

# 5-6
age = 10
if age < 2:
    print('He is a baby.')
elif age < 4:
    print('He is learning walking.')
elif age < 13:
    print('He is a child.')
elif age < 20:
    print('He is a teenager.')
elif age < 65:
    print('He is a adult.')
else:
    print('He is an aged man.')

# 5-8
user = 'Mike'
name_list = ['Helen', 'Mike', 'Neil', 'admin', 'Eric']
if user == 'admin':
    print('Hellp admin, would you like to see a status report?')
else:
    print('Hello ' + user + ', thank you for logging in again.')

# 5-8
while name_list:
    name_list.pop()
if len(name_list) == 0:
    print('We need to find some users!')