本程序运行时，检索整个局域网，将局域网中的计算机显示在ListBox控件中，当用户单击ListBox控件中的计算机名时，右边的文本框就可以显示该计算机的机器名和对应的IP地址。-The program is running, retrieve the LAN, the LAN computer display in the ListBox control, ListBox control when the user clicks the computer name, the right of the text box to display the computer' s machine name and corresponding IP address.