C#调用Windows防火墙系统设置，并实现更改这些设置，可以关闭、开启系统防火墙、开启例外、添加自身允许，并可恢复系统防火墙默认设置。-C# is called Windows Firewall system settings, and to achieve change these settings, you can turn off, open the system firewall, open the exception, add its own permits, and to reve