49、面向对象编程：从问题分析到类设计

面向对象编程：从问题分析到类设计

1. 程序输出示例

以下是一个程序输出示例，展示了一个联系人管理程序的交互过程：

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1. Look up a contact
2. Add a new contact
3. Change an existing contact
4. Delete a contact
5. Quit the program
Enter your choice: 1 [Enter]
Enter a name: Matt Goldstein [Enter]
Name: Matt Goldstein
Phone: 617-555-1234
Email: matt@fakecompany.com
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1. Look up a contact
2. Add a new contact
3. Change an existing contact
4. Delete a contact
5. Quit the program
Enter your choice: 1 [Enter]
Enter a name: Jorge Ruiz [Enter]
Name: Jorge Ruiz
Phone: 919-555-1212
Email: jorge@myschool.edu
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1. Look up a contact
2. Add a new contact
3. Change an existing contact
4. Delete a contact
5. Quit th