py第十章习题

#10-2
message = 'Hello, my friend'
print(message)
message.replace('friend', 'partner')
print(message)

#10-3
filename = 'guest.txt'
with open(filename, 'a') as f_ob:
	i = input('Enter your name:')
	f_ob.write(i)
	
	
#10-4
filename = 'guesst_book.txt'
with open(filename, 'a') as f:
	t = input('Enter your name:  (input "exit" to exit)')
	while(t != 'exit'):
		print('Welcome! ' + t)
		f.write(t + '\n')
		t = input('Enter your name:')
		
#10-5
filename = 'reason.txt'
with open(filename, 'a') as f:
	t = input('Why do you like programming?  (input "exit" to exit)')
	while(t != 'exit'):
		print('We got it.')
		f.write(t + '\n')
		t = input('Why do you like programming?  (input "exit" to exit)')