注册表和NetIO冲突-设置网关

当系统中同时使用了注册表和NetIO时，可能会导致冲突，造成网络连接无法正常工作。为了解决这个问题，可以通过设置网关来解决。

以下为示例代码：

import socket
import struct

# 设置网关地址
def set_gateway(gateway_ip):
    # 将IPv4地址转换为32位二进制数
    packed_ip = socket.inet_aton(gateway_ip)
    # 获取默认网卡名称
    iface = socket.gethostname()
    # 将网络接口名称转换为字节数组
    iface_bytes = bytearray(iface.encode("utf-8"))
    # 获取操作系统名称
    os = struct.unpack("<L", struct.pack(">H", 1))[0]
    # 使用Win32 API中的SetIpForwardEntry函数设置网关
    if os == 1:
        import ctypes
        class MIB_IPFORWARDROW(ctypes.Structure):
            _fields_ = [("dwForwardDest", ctypes.c_ulong),
                        ("dwForwardMask", ctypes.c_ulong),
                        ("dwForwardPolicy", ctypes.c_ulong),
                        ("dwForwardNextHop", ctypes.c_ulong),
                        ("dwForwardIfIndex", ctypes.c_ulong),
                        ("dwForwardType", ctypes.c_ulong),
                        ("dwForwardProto", ctypes.c_ulong),
                        ("dwForwardAge", ctypes.c_ulong),
                        ("dwForwardNextHopAS", ctypes.c_ulong),
                        ("dwForwardMetric1", ctypes.c_ulong),
                        ("dwForwardMetric2", ctypes.c_ulong),
                        ("dwForwardMetric3", ctypes.c_ulong),
                        ("dwForwardMetric4", ctypes.c_ulong),
                        ("dwForwardMetric5", ctypes.c_ulong)]

        MIB_IPPROTO_IP = 0
        dwIndex = 1
        row = MIB_IPFORWARDROW()
        row.dwForwardDest = 0
        row.dwForwardMask = 0
        row.dwForwardPolicy = 0
        row.dwForwardNextHop = struct.unpack(">L", packed_ip)[0]
        row.dwForwardIfIndex = dwIndex
        row.dwForwardType = 4
        row.dwForwardProto = MIB_IPPROTO_IP
        row.dwForwardAge = 0
        row.dwForwardNextHopAS = 0
        row.dwForwardMetric1 = 1

        ctypes.windll.iphlpapi.SetIpForwardEntry(ctypes.byref(row))

在示例代码中，我们通过调用Win32 API中的SetIpForwardEntry函数来设置网关地址。此函数是在iphlpapi.dll中实现的。我们首先定义了一个MIB_IP