使用vb6编写的简单的端口监听程序，包含服务端和客户端代码，先启动客户端，再启动客户端，点击连接后会弹出连接成功的提示，在客户端文本框中输入文本，服务端会实时显示内容。(The simple port listening program written with VB6 includes the server and the client code, starting the client first, and starting the client. After clicking the connection, the prompt will be popped out, the text is entered in the client text box, and the server will display the content in real time.)