while.py

python简明教程源代码

# Filename : while.py

number = 23
running = True

while running:
    guess = int(raw_input('Enter an integer :'))

    if guess == number:
        print 'Congratulations, you guessed id.'
        running = False # this causes the while loop to stop
    elif guess < number:
        print 'No, it is a little higher than that'
    else:
        print 'No, it is a little lower than that'
else:
    print 'The while loop is over.'
    # Do anything else you want to do here

print 'Done'