用字典建立一個通訊錄，向字典中添加和刪除通訊人（名字、電話、郵箱、工作單位等），查詢某個人的信息，然后輸出通訊錄中所有人的信息。

采用列表里套字典的方法，比較簡單

contacts = []def add():mes = "Please enter the message of the people,and spilt them with space"mes +="\nphone email adress "name = input("Please enter the name of the people:\n")#定義提示信息，收集名字進行下一步的判斷if name in contacts:print(f"{name.title()} is insist,whether change the people's information,")com =("Please enter 'yes' or 'no'")#如果已經收錄此人信息，反饋以獲得下一步的行動email = 'NONE'adress = 'NONE'if com == 'yes':contact.remove(name)#將原信息刪除try:phone,email,address = input(mes).split()contacts.append({'name' : name , 'phone' : phone , 'email' : email,'address':address})except ValueError:print("The message is not enough")#收集三個信息，并且在信息不足時反饋給用戶else:try:phone,email,address = input(mes).split()contacts.append({'name' : name , 'phone' : phone , 'email' : email,'address':address})except ValueError:print("The message is not enough")#在此用戶不存在時進行正常流程def lookfor(name):for i in contacts:if i['name'] == name:return ielse:print("The people doesn't in your contacts")#定義查找函數，返回需要查找的聯系人的字典def delect():name = input("Please input the name you want to delect")contacts.remove(lookfor(name))#進行刪除聯系人def inquire():name = input("Please enter the name you want to inquire")print(lookfor(name))#輸出查找聯系人的信息def outputall():for i in contacts:print(i) #輸出全部信息 while True:comand = "\nYou can enter different command to realize different functions,\n"comand +="1 . add liaisons;\n2 . delect liaisons; \n3 .inquire liaisons ; \n"comand +="4.out put all over information.\nYou can enter 'q' at any time to quit"print(comand)#給予操作提示cmd = input("Please enter the command you want to realize:\n")#收集操作指令if cmd == '1':add()elif cmd == '2':delect()elif cmd == '3':inquire()elif cmd == '4':outputall()elif cmd == '5':breakelse:print("\nThe command is not allowed") #分別進行不同的操作

總結

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