poem = '''Program is fun
when the work is done
if you wanna make your work also fun:
use python'''
f = file('poem.txt','w') # open for 'w'riting
f.write(poem) # write text to file
f.close() # close the file
f = file('poem.txt')

while True:
   line= f.readline()
   if len(line) == 0:
        break
print
 
(line)

f.close()

執行結果：

經過排查錯誤發現：file改成open就好了

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