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import psutil
import subprocess

def get_active_interfaces():
    active_interfaces = []
    net_stats = psutil.net_if_stats()
    for interface, stats in net_stats.items():
        if stats.isup:
            active_interfaces.append(interface)
    return active_interfaces

def set_dns_servers(interface, dns_servers):
    # 设置主DNS服务器
    command = f'netsh interface ip set dns name="{interface}" static {dns_servers[0]}'
    subprocess.run(command, shell=True)
    
    # 设置备用DNS服务器
    for index, dns in enumerate(dns_servers[1:], start=2):
        command = f'netsh interface ip add dns name="{interface}" {dns} index={index}'
        subprocess.run(command, shell=True)

def main():
    dns_servers = ["120.196.165.24", "120.196.165.7"] # 要设置的DNS服务器地址
    
    active_interfaces = get_active_interfaces()

    if not active_interfaces:
        print("No active network interfaces found.")
        return

    for interface in active_interfaces:
        print(f"Setting DNS for {interface}")
        set_dns_servers(interface, dns_servers)
        print(f"DNS for {interface} set to {dns_servers}")

if __name__ == "__main__":
    main()

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pip install psutil