C# 注册表操作类(查询、修改、删除)

注册表操作需要获取管理员权限，可以将exe设置为管理员启动。具体操作代码如下:

/// <summary>
/// 注册表  HKEY_LOCAL_MACHINE/SOFTWARE 节点下
/// </summary>
public static class RegistryHelper
{
    private const string Node = "SOFTWARE";

    public static string GetRegistryData(string node, string key)
    {
        string registData;
        RegistryKey hkml = Registry.LocalMachine;
        RegistryKey software = hkml.OpenSubKey(Node, true);
        RegistryKey dir = software.OpenSubKey(node, true);
        registData = dir.GetValue(key)?.ToString();
        return registData;
    }

    /// <summary>
    /// 写入注册表
    /// </summary>
    /// <param name="node">节点</param>
    /// <param name="name">注册项名称</param>
    /// <param name="value">注册项值</param>
    public static void WriteRegistry(string node, string name, string value)
    {
        RegistryKey hklm = Registry.LocalMachine;
        RegistryKey software = hklm.OpenSubKey(Node, true);
        RegistryKey dir = software.CreateSubKey(node);
        if (dir != null)
            dir.SetValue(name, value);
    }

    /// <summary>
    /// 删除注册表
    /// </summary>
    /// <param name="node"></param>
    /// <param name="name"></param>
    public static void DeleteRegistry(string node, string name)
    {
        string[] aimnames;
        RegistryKey hkml = Registry.LocalMachine;
        RegistryKey software = hkml.OpenSubKey(Node, true);
        RegistryKey dir = software.OpenSubKey(node, true);
        aimnames = dir.GetSubKeyNames();
        foreach (string aimKey in aimnames)
        {
            if (aimKey == name)
                dir.DeleteSubKeyTree(name);
        }
    }

    /// <summary>
    /// 查询节点是否存在
    /// </summary>
    /// <param name="node"></param>
    /// <param name="name"></param>
    /// <returns></returns>
    public static bool IsRegeditExit(string node, string name)
    {
        bool _exit = false;
        string[] subkeyNames;
        RegistryKey hkml = Registry.LocalMachine;
        RegistryKey software = hkml.OpenSubKey(Node, true);
        RegistryKey dir = software.OpenSubKey(node, true);
        subkeyNames = dir.GetSubKeyNames();
        foreach (string keyName in subkeyNames)
        {
            if (keyName == name)
            {
                _exit = true;
                return _exit;
            }
        }
        return _exit;
    }
}