Python Learning-Dictionary exercises: simple Address Book

Functional Requirements:

• Query contact, enter the name, you can query the current contacts in the contact information, if the contact exists, the output contact information, if not exist, then inform
• Insert a contact, you can create a new contact in the contacts, if the contact already exists, ask whether to modify the contact information, if it does not exist, create a new contact
• Delete a contact, you can delete the contact, if the contact does not exist, tell
• Enter a command to exit contacts

Specific code implementation:

1 #!/usr/bin/env Python32 #-*-coding:utf-8-*-3 #@Time: 2018/3/26 10:014 #@Author: Yang5 #@File: exercise.py6 #@Software: Pycharm7 8 #Contacts9 Print(" "|---Welcome to the Address Book---|Ten |---1, contact information---| One |---2, insert a new contact---| A |---3, delete contact information---| - |---4, exit Address Book Program---| - " ") theAddressBook = {'Xiao Yang': 12345678,'Xiao Zhang': 12345679,'Xiao Zhao': 12345670} -  while1: -Order_code = input ('Please enter the instruction code:') -     ifOrder_code.isdigit () = = False:#determine if the instruction is composed of only numbers +         Print('The instruction code you entered is malformed, please re-enter it as prompted! ') -         Continue +item = Int (Order_code)#converting an input instruction to an integral type A  at     ifitem = = 4: -         Print('thanks for using the Address Book! ') -          Break      #End Loop -     #Enter the name of the contact person -Name = input ('Please enter the name of the contact person:') -     ifitem = = 1:#Query Contact Information in         ifNameinchAddressBook: -             Print(Name,':', Addressbook[name]) to             Continue     #End Current Loop +         Else: -             Print('The contact does not exist. ') the     ifitem = = 2:#New contact Person *         ifNameinchAddressBook: $             Print('the contact you entered already exists in the Address book--->>', Name,':', Addressbook[name])Panax NotoginsengIs_edit = input ('Whether you need to modify the contact information: (y/n)')#determine if you need to modify the current contact information -             ifIs_edit = ='Y': theUserphone = input ('Please enter contact Phone:') +Addressbook[name] =Userphone A                 Print(AddressBook) the                 Continue +             Else: -                 Continue $         Else: $Userphone = input ('Please enter contact Phone:') -addressbook[name]=Userphone -             Print('Contact added successfully! ') the             Print(AddressBook) -             ContinueWuyi     ifitem = = 3:#Delete a contact the         ifNameinchAddressBook: -             delAddressbook[name] Wu             Print('Contacts deleted successfully! ') -             Print(AddressBook) About             Continue $         Else: -             Print('contact does not exist.')

Python Learning-Dictionary exercises: simple Address Book