跟着我们一起学 Python 30天课程-第18天-文件I / O

# test.txt
I am learning python.

content = open('test.txt')
output = content.read()
print(output) # I am learning python.

content = open('test.txt', mode='r')
output = content.read()
print(output)
content.close()

try:
    content = open('test.txt', mode='r')
    output = content.read()
    print(output)
except FileNotFoundError as error:
    print(f'file not found {error}')
finally:
    content.close()

with open('test.txt', mode='r') as content:
    output = content.read()
    print(output) # I am learning python.

with open('test.txt', mode='w', encoding='utf-8') as my_file:
    my_file.write('This is the first line\n') # \n is for creating a newline
    my_file.write('This is the second line\n')
    my_file.write('This is the third line')

with open('test.txt', mode='a', encoding='utf-8') as my_file:
    my_file.write('This text will be appended')

with open('test.txt', mode='w', encoding='utf-8') as my_file:
    my_file.writelines(['First line', '\n', 'Second Line'])

with open('test.txt', mode='r', encoding='utf-8') as my_file:
    content = my_file.read()
    print(content)

with open('test.txt', mode='r', encoding='utf-8') as my_file:
    my_file.seek(0) # brings cursor to beginning of file
    print(my_file.tell()) # prints location of cursor
    content = my_file.read()
    print(content)

with open('test.txt', mode='r', encoding='utf-8') as my_file:
    for line in my_file:
        print(line)

If you can't make it good, at least make it look good. - Bill Gates

from translate import Translator

spanish_translate = Translator(to_lang="es")
french_translate = Translator(to_lang="fr")

try:
    with open('quote.txt', mode='r') as quote_file:
        # read the file
        quote = quote_file.read()
        # do the translations
        quote_spanish = spanish_translate.translate(quote)
        quote_french = french_translate.translate(quote)
        # create the translated files
        try:
            with open('quote-es.txt', mode='w') as quote_de:
                quote_de.write(quote_spanish)
            with open('quote-fr.txt', mode='w') as quote_fr:
                quote_fr.write(quote_french)
        except IOError as error:
            print('An error ocurred')
            raise (error)
except FileNotFoundError as error:
    print('File not found')
    raise (error)