说明: socket网络编程具体代码实现serv_sockfd = socket(AF_INET, SOCK_STREAM, 0); if (serv_sockfd < 0) { perror("socket"); goto err_socket; } struct sockaddr_in attr = { .sin_family = AF_INET, .sin_port = htons(NET_PORT), .sin_addr = { .s_addr = inet_addr(IP_ADDR),
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