#!/usr/bin/env python
#-*-coding:utf-8-*-
import os
ls =os.linesep
#导入os模块，获取当前系统行终止符
#取得fname变量的文件名
while True:fname =raw_input("Enter filename:")try:if os.path.exists(fname):print "ERROR:'%s' already exists" % fnameelse:breakexcept:print "*** file open error:",e
#输入文件名，如果存在提示存在，不存在结束循环进入下个程序
all =[]
print "\nEnter lines ('.' by itself to quit).\n"
#提示使用.quit
while True:entry =raw_input('>')if entry=='.':breakelse:all.append(entry)
#循环，如果有.结束循环，其他情况添加.
fobj =open(fname,'w')
fobj.writelines(['%s%s'%(x,ls) for x in all])
#输入输入进去的每一行
fobj.close()
print 'DONE!

#!/usr/bin/env python#-*-coding:utf-8-*-

fname =raw_input("Enter filename:")#提示输入需要阅读的文件名printtry:fobj =open(fname,'r')#在读的模式下打开文件except IOError,e:print "*** file open error:",e#若出错提示错误else:for eachLine in fobj:print eachLine,fobj.close()#打印出每一行，并关闭

#!/usr/bin/env python
#-*-coding:utf-8-*-
'readTextFile.py -- read and display text file'
#fname变量获得文件名
import os
fname=raw_input('Enter filename:')
if os.path.exists(fname):#fobj对象读模式打开文件fobj=open(fname,'r')for eachLine in fobj:print eachLine.strip()fobj.close()
else:print "No this file"

#!/usr/bin/env python
#-*-coding:utf-8-*-
'readTextFile.py -- read and display text file'
#fname变量获得文件名
import os
fname=raw_input('Enter filename:')
if os.path.exists(fname):#fobj对象读模式打开文件fobj=open(fname,'r')for eachLine in fobj:print eachLine.strip()fobj.close()
else:print "No this file"

#!/usr/bin/env python#-*-coding:utf-8-*-import os
ls =os.linesep
while True:print """1.readTextFile2.makeTextFile3.quit4.make the already Text File"""choose =raw_input("please find the choose")if choose =='1':print "You choose 1"while True:fname =raw_input("enter the name:")if os.path.exists(fname):print "the name is already exists!"else:breakall=[]print"\n Enter lines('.' by itself to quit)\n"while True:entry =raw_input(">")if entry =='.':breakelse:all.append(entry)fobj =open(fname,'w')fobj.writelines(['%s%s'%(x,ls) for x in all])fobj.close()print "DONE!"if choose=='2':print 'You choose 2'fname =raw_input("please choose the file:")fobj =open(fname,'r')for eachLine in fobj:print eachLine,fobj.closeif choose=='3':breakif choose=='4':fname =raw_input("please choose the file:")all =[]while True:entry =raw_input(">")if entry=='.':breakelse:all.append(entry)fobj =open(fname,'w')fobj.writelines(['%s%s'%(x,ls) for x in all])fobj.close()print "DONE!"