使用浏览器访问python写的服务器程序

import socketimport reimport multiprocessingdef service_client(client_socket):  data = client_socket.recv(1024)  recv_data=data.decode("utf-8")  print(recv_data)  #GET /index.html HTTP/1.1  ret=re.match(r"[^/]+ /([/S]+/s|/s)",recv_data)  file_n="index.html"  if ret:    if ret.group(1)!=" ":      print(ret.group(1))      file_n=ret.group(1)  else:    print("代码有误！")  try:    with open(file_n,"rb") as f:      content=f.read()      f.close()  except Exception as r:    print(r)    content = "<h1>file not found</h1>".encode("utf-8")  header="HTTP/1.1 200 OK/r/n"  empty="/r/n"  response=(header+empty).encode('utf-8')  client_socket.send(response)  client_socket.send(content)  client_socket.close()  print("client_socket.close()已调用")def main():  tcp_socket=socket.socket(socket.AF_INET,socket.SOCK_STREAM)  tcp_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)  local_addr=("127.0.0.1",7788)  tcp_socket.bind(local_addr)  tcp_socket.listen(128)  while True:    client_socket, client_addr = tcp_socket.accept()    p=multiprocessing.Process(target=service_client,args=(client_socket,))    p.start()    # p.join()  tcp_socket.close()if __name__ == "__main__":  main()