如何使用python将多个输入写入文本文件？

Question

I'm writing a ham radio logger. I want to write multiple inputs but with line breaks. Here's my example.

raw_input = question1(' text here ')
raw_input = question2(' ')
f.write(question1)
print ' '
f.write(question2)
print ' '

Is there a way to combine to 2 with a line break between? I've tried

f.write(question1, "\n" question2, "\n")

but I get errors. I just want to make it shorter. I'm very new to Python.

Answer 1

q1=raw_input('question 1:') q2=raw_input('question 2:') with open('a.txt','w+') as f: f.writelines(q1+'\n') f.writelines('\n') f.writelines(q2+'\n') 

input
question1: hello?
question2:yes!

output:
hello?
"line break"
yes!

By the way, if you want to output file with some special format, you could use json(import json). AND, BEST to use " with " to handle file!

Answer 2

you could also append a newline char \\n at the end of each input or store the inputs to a list and write it to a file

itemlist = []
itemlist.append(raw_input("Your question"))
with open("text_file","w+") as outfile:
    outfile.write("\n".join(itemlist))

note that the with automatically closes the open file.

Answer 3

The print is writing to standard output, not to f (which I assume is an open file handle). The write method does not add newlines by itself, although you could of course add one.

f.write(''.join(question1, '\n', question2, '\n'))

Joining everything into one string just for printing isn't really necessary. You can write things piecemeal, and/or use + for concatenation of strings, too:

f.write(question1 + '\n')
f.write(question2 + '\n')

or even just

f.write(question1)
f.write('\n')
f.write(question2)
f.write('\n')

You could Python's string formatting to interpolate variables with formatting into strings, too:

f.write('{0}\n{1}\n'.format(question1, question2))

or the once prevalent % interpolation operator:

f.write('%s\n%s\n' % (question1, question2))

With Python 2.6+ you can from __future__ import print_function and then the Python 3 print function with an optional file= argument can be used. This is actually what I would recommend here. print adds a newline by default (though it can be turned off if you wish).

print(question1, file=f)
print(question2, file=f)

Answer 4

You were on the right path, just needed to make a few changes to your code. Try this on for size.

73s

question1 = raw_input('Any question? ')
question2 = raw_input('What is another question you have? ')

f = open('filename.txt', 'wb')
f.write("QUESTION 1 = " + str(question1) + "\nQUESTION 2 = " + str(question2))
f.close()

Output will look like this...

QUESTION 1 = What is ham radio?
QUESTION 2 = Do I need a license