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c，#include，#include，#include，#include，#include，#include，#includeint main() {， int sockfd;， struct sockaddr_in server_addr;， char request = "GET / HTTP/1.1，Host: www.example.com，Connection: close";， char buffer[1024];， int bytes_received; // 创建套接字， if ((sockfd = socket(AF_INET, SOCK_STREAM, 0))