Python 的文件读写

写文件

import os
ls=os.linesep

#get filename
fname=raw_input('Enter file name: ')
if os.path.exists(fname):
        print "Error:"+fname
        
#get file content
all=[]
print "\nEnter lines ('.' by itself to quit).\n"

while True:
    entry=raw_input('> ')
    if entry=='.':
        break
    else:
        all.append(entry)
#write file
print all
fobj=open(fname,'w')
fobj.writelines(['%s%s' % (x,ls) for x in all])
fobj.close()
print 'Done'

读文件

#!/usr/bin/env python

'ReadFile.py -- Read text file'

#get filename
fname=raw_input('Enter file name: ')
print
      
#read file content
try:
    fobj=open(fname,'r')
except IOError,e:
    print "open error",e
for eachline in fobj:
    print eachline,
fobj.close()