linux tcp代码流程
    英文回答：
    The flow of Linux TCP code can be divided into several steps. Let me explain it in detail.
    1. Socket Creation: The first step is to create a socket using the `socket()` system call. This creates a socket descriptor that represents the endpoint for communication.
    2. Binding: The next step is to bind the socket to a specific address and port using the `bind()` system call. This associates the socket with a specific network interface and port number.
    3. Listening: If the socket is intended to be a server socket, the `listen()` system call is used to put the socket in a passive listening state. This allows the socket to accept incoming connections.
    4. Accepting Connections: Once the socket is in the listening state, the `accept()` system c
all is used to accept incoming connections. This creates a new socket descriptor for the accepted connection.
    5. Sending and Receiving Data: With the accepted connection, the socket can be used to send and receive data using the `send()` and `recv()` system calls, respectively. These calls allow data to be transmitted over the network.
    6. Closing the Connection: When the communication is complete, the sockets involved in the connection can be closed using the `close()` system call. This releases the resources associated with the sockets.
html全部居中代码    Now let me explain it in Chinese.
    中文回答：
    Linux TCP代码的流程可以分为几个步骤。让我详细解释一下。
    1. 创建套接字，第一步是使用`socket()`系统调用创建一个套接字。这将创建一个表示通信端点的套接字描述符。
    2. 绑定，接下来的步骤是使用`bind()`系统调用将套接字绑定到特定的地址和端口。这将将套接字与特定的网络接口和端口号关联起来。
    3. 监听，如果套接字是服务器套接字，可以使用`listen()`系统调用将套接字置于被动监听状态。这允许套接字接受传入的连接。
    4. 接受连接，一旦套接字处于监听状态，可以使用`accept()`系统调用接受传入的连接。这将为接受的连接创建一个新的套接字描述符。
    5. 发送和接收数据，通过已接受的连接，可以使用`send()`和`recv()`系统调用分别发送和接收数据。这些调用允许在网络上传输数据。
    6. 关闭连接，当通信完成时，可以使用`close()`系统调用关闭涉及连接的套接字。这将释放与套接字相关的资源。
    以上就是Linux TCP代码的流程。通过这些步骤，可以实现基本的网络通信功能。

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