C# 操作Hosts 新增修改删除
class ModifyHosts{
/// <summary>
/// 新增hosts记录
/// </summary>
/// <param name="ip"></param>
/// <param name="domain"></param>
public static void Add_Hosts(string domain, string ip)
{
string path = Environment.GetFolderPath(Environment.SpecialFolder.System) + "\\drivers\\etc\\hosts";
string[] hosts = File.ReadAllLines(path);
List<string> list = hosts.ToList();
string temp = hosts.ToList().FirstOrDefault(x => x.Contains(domain));
if (string.IsNullOrEmpty(temp))
{
list.Add($"{ip} {domain}");
}
File.WriteAllLines(path, list.ToArray());
}
/// <summary>
/// 更新Hosts记录
/// </summary>
/// <param name="ip"></param>
/// <param name="domain"></param>
public static void Update_Hosts(string domain, string ip)
{
string path = Environment.GetFolderPath(Environment.SpecialFolder.System) + "\\drivers\\etc\\hosts";
string[] hosts = File.ReadAllLines(path);
List<string> list = hosts.ToList();
list.RemoveAll(x => x.Contains(domain));
list.Add($"{ip} {domain}");
File.WriteAllLines(path, list.ToArray());
}
/// <summary>
/// 删除Hosts记录
/// </summary>
/// <param name="hosts_str"></param>
public static void Remove_Hosts(string hosts_str)
{
string path = Environment.GetFolderPath(Environment.SpecialFolder.System) + "\\drivers\\etc\\hosts";
string[] hosts = File.ReadAllLines(path);
List<string> list = hosts.ToList();
list.RemoveAll(x => x.Contains(hosts_str));
File.WriteAllLines(path, list.ToArray());
}
}
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