初学python 参考网上常见的代码设置TCP的心跳：
def __init__(self, IP="127.0.0.1", Port=5555):
"""初始化对象"""
self.code_mode = "utf-8" #收发数据编码/解码格式
self.IP = IP
self.Port = Port
self.my_socket =socket(AF_INET, SOCK_STREAM) #创建socket
self.my_socket.setsockopt(SOL_SOCKET,SO_KEEPALIVE,True)
self.my_socket.ioctl(SIO_KEEPALIVE_VALS,(1,10000,1000))
运行时报错：
AttributeError: 'socket' object has no attribute 'ioctl'
发现vsc中并没标出异常，重写代码还能自动补齐，说明SOCKET是有这个函数的。查了一下网上没相关错误的资料，这可能是个人缺少TCP相关常识。打开 python 的socket.ioctl定义，证实了这一点.定义如下:
if sys.platform == "win32":
def ioctl(self, __control: int, __option: int | tuple[int, int, int] | bool) -> None: ...
总结下：我在win7里用vs写代码，上传到linux运行，而 ioctl只在window有效。
linux下应改为
self.my_socket.setsockopt(SOL_SOCKET,SO_KEEPALIVE,True)
#self.my_socket.ioctl(SIO_KEEPALIVE_VALS,(1,10000,1000))
self.my_socket.setsockopt(IPPROTO_TCP, TCP_KEEPIDLE, 10)
self.my_socket.setsockopt(IPPROTO_TCP, TCP_KEEPINTVL, 3)
self.my_socket.setsockopt(IPPROTO_TCP, TCP_KEEPCNT, 5)
