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\”

注：这是本人写的第一个python，有诸多不足，以后改进