学步园

     今天把沈洁元翻译过来的《A Byte of Python》(中文版本叫《简明Python教程)看完了，这本书确实还好不错，特别适合Python的初学者，书中的很多例子简明实用很好的说明了Python的特性，使初学者能感受到Python简洁实用的特性。书中的例子我也都实际操作了，发现Python确实相当好用。书最后中作者留给读者的一个操作题是关于命令行地址簿的程序。我自己动手编了下，程序写的还有点粗糙，不过功能已经实现了，程序代码如下：

 #Filename: connection.py</p> <p>import sys</p> <p>ab={}</p> <p>class Person:<br /> def __init__(self,name,phone):<br /> self.name=name<br /> self.phone=phone<br /> #print('(Initializing %s)'%self.name)</p> <p> def search(self,name,phone):<br /> if self.name in ab:<br /> print('%s/'s phonenumber is %s'%(self.name,ab[name].phone))<br /> else:<br /> print('This is no man named %s'%name)<br /> def delete(self,name,phone):<br /> if self.name in ab:<br /> del ab[name]<br /> else:<br /> print('This is no man name %s,so you can not delete'%name)</p> <p>while True:<br /> string=input('Enter something -->')<br /> if string=='help':<br /> print(' ------address book------/n /<br /> select the function according to the number as below:/n /<br /> add --------------1 /n /<br /> search -----------2 /n /<br /> delete -----------3 /n /<br /> exit -------------4')<br /> elif string=='1':<br /> s1=input('Enter name:')<br /> s2=input('Enter phone:')<br /> p=Person(s1,s2)<br /> ab[p.name]=p<br /> elif string=='2':<br /> s3=input('Enter name:')<br /> if s3 in ab:<br /> ab[s3].search(s3,ab[s3].phone)<br /> else:<br /> print('No %s in the address book'%s3)<br /> elif string=='4':<br /> sys.exit()<br /> elif string=='3':<br /> s4=input('Enter name:')<br /> p=Person(s4,ab[s4])<br /> p.delete(p.name,p.phone)<br /> else:<br /> print('Sorry the number is wrong,check again!')<br />

一个运行的实例如下：

Enter something -->help<br /> ------address book------<br /> select the function according to the number as below:<br /> add --------------1<br /> search -----------2<br /> delete -----------3<br /> exit -------------4<br /> Enter something -->2<br /> Enter name:tom<br /> No tom in the address book<br /> Enter something -->1<br /> Enter name:tom<br /> Enter phone:13070154180<br /> Enter something -->2<br /> Enter name:tom<br /> tom's phonenumber is 13070154180<br /> Enter something -->3<br /> Enter name:tom<br /> Enter something -->2<br /> Enter name:tom<br /> No tom in the address book