下面有一个程序，让用户输入一些姓名和电话号码。每一个姓名和号码将加在文件里。用户通过点“Done"按钮来告诉系统整个列表已输入完毕。一旦用户输入完整个列表，程序将创建一个输出文件并显示或打印出来。-Here is a program that allows users to enter some name and phone number. Every name and number will be added in the document. Users through some "Done to yourself" button to tell the whole list system input. Once the user input to complete a list, the program will create an output files and display or printing.