核心代码：

复制代码 代码如下:

!/usr/bin/python

Filename:friendbook.py

import cPickle as p
import sys
import time
import os

ab={'Xdex':'cneds@fnedf.com',
'Laexly':'fev@fe.com',
'Fukc':'fexok@ver.com',
'Stifu':'stif@qq.com'
}

def Dumpfile(list):
f=file(friendab,'w')
p.dump(list,f)
f.close()

if os.path.isfile('friendab.data'):
friendab='friendab.data'
else:
os.touch('friendab.data')
Dumpfile(ab)
del ab

f=file(friendab)
frilist=p.load(f)

class Person:
def init(self,name):
self.name=name
def saysome(self):
print 'The friend %s,his E-mail is %s '%(sname,frilist[sname])
class addPerson:
def init(self,name,email):
self.name=name
self.email=email
def addbook(self):
ab=frilist
ab[sname]=email
Dumpfile(ab)
del ab
print 'Succlessful!'
class delPerson:
def init(self,name):
self.name=name
def delbook(self):
ab=frilist
ab.pop(sname)
Dumpfile(ab)
del ab
print 'Success DEL'

class alterPerson:
def init(self,name,email):
self.name=name
self.email=email
def alterbook(self):
ab=frilist
ab[sname]=email
Dumpfile(ab)
del ab
print 'Succlessful update!'

print '''\
This program prints files to the standard output.
Any number of files can be specified.
Options include:
[1] : Search your friend's email from friendsbook
[2] : add your friend's email to firendsbook
[3] : del your friend's email from firnedsbook
[4] : alter your friend's email from friendsbook
[5] : All friends list
[6] : exit the program
'''

num=raw_input('Press the number [1,2,3,4,5] -->')

if (num=='1'):
sname=raw_input('Enter the name-->')
if sname in frilist:
p=Person(sname)
p.saysome()
else:
print 'Not in it'
elif (num=='2'):
sname=raw_input('Enter the name-->')
email=raw_input('Enter the email-->')
pa=addPerson(sname,email)
pa.addbook()

p=Person(sname)

    #p.saysome()  
    print frilist  

elif (num=='3'):
sname=raw_input('Enter the name-->')
pa=delPerson(sname)
pa.delbook()
elif (num=='4'):
sname=raw_input('Enter the name-->')
if sname in frilist:
email=raw_input('Enter the email-->')
p=alterPerson(sname,email)
p.alterbook()
else:
print 'Not in it'
elif (num=='5'):
print frilist
elif (num=='6'):
print "Bye!"
else:
print "Please input the right number"