using_file.py

python简明教程源代码

# -*- coding: cp936 -*-
# Filename: using_file.py

poem = '''\
Programming 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'rting
f.write(poem) # write text to file
f.close()     # close the file

f = file('poem.txt')
# if no mode is specified, 'r'read mode is assumed by default
while True:
    line = f.readline()
    if len(line) == 0: # Zero length indicates EOF
        break
    print line,
    # Notice comma to avoid automatic newline added by Python
f.close() # close the file

print 'a',
print 'b'
print 'c',
print 'd'
print 'e'