C# 读写注册表

 /// <summary>
    /// 获得要找到的注册表项
    /// </summary>
    /// <param name="path">注册表路经</param>
    /// <returns>返回注册表对象</returns>
    public bool CreateItemRegEdit(string path)
    {
        try
        {
            Microsoft.Win32.RegistryKey obj = Microsoft.Win32.Registry.LocalMachine;

            obj.CreateSubKey(path);

            return true;
        }
        catch (Exception e)
        {
            return false;
        }
    }

    /// <summary>
    /// 设置注册表项下面的值
    /// </summary>
    /// <param name="path">路经</param>
    /// <param name="name">名称</param>
    /// <param name="value">值</param>
    /// <returns>是否成功</returns>
    public int SetValueRegEdit(string path ,string name ,string value)
    {
        try
        {
            Microsoft.Win32.RegistryKey obj = Microsoft.Win32.Registry.LocalMachine;
            Microsoft.Win32.RegistryKey objItem = obj.OpenSubKey(path,true);
            objItem.SetValue(name, value);
        }
        catch (Exception e)
        {
            return 0;
        }
        return 1;
    }

    /// <summary>
    /// 查看注册表指定项的值
    /// </summary>
    /// <param name="path">路经</param>
    /// <param name="name">项名称</param>
    /// <returns>项值</returns>
    public string getValueRegEdit(string path, string name)
    {
        string value ;
        try
        {
            Microsoft.Win32.RegistryKey obj = Microsoft.Win32.Registry.LocalMachine;
            Microsoft.Win32.RegistryKey objItem = obj.OpenSubKey(path);
            value = objItem.GetValue(name).ToString();
        }
        catch (Exception e)
        {
            return "";
        }
        return value;
    }

    /// <summary>
    /// 查看注册表项是否存在
    /// </summary>
    /// <param name="value">路经</param>
    /// <param name="name">项名称</param>
    /// <returns>是否存在</returns>
    public bool SearchItemRegEdit(string path,string name)
    {
        string[] subkeyNames;

        Microsoft.Win32.RegistryKey hkml = Microsoft.Win32.Registry.LocalMachine;

        Microsoft.Win32.RegistryKey software = hkml.OpenSubKey(path);

        subkeyNames = software.GetSubKeyNames();

        //取得该项下所有子项的名称的序列，并传递给预定的数组中  

        foreach (string keyName in subkeyNames)   //遍历整个数组  
        {

            if (keyName.ToUpper() == name.ToUpper()) //判断子项的名称  
            {
                hkml.Close();
                return true;
            }

        }

        hkml.Close();

        return false;  
 
    }

    /// <summary>
    /// 查看注册表的值是否存在
    /// </summary>
    /// <param name="value">路经</param>
    /// <param name="value">查看的值</param>
    /// <returns>是否成功</returns>
    public bool SearchValueRegEdit(string path,string value)
    {

        string[] subkeyNames;

        Microsoft.Win32.RegistryKey hkml = Microsoft.Win32.Registry.LocalMachine;

        Microsoft.Win32.RegistryKey software = hkml.OpenSubKey(path);

        subkeyNames = software.GetValueNames();

        //取得该项下所有键值的名称的序列，并传递给预定的数组中  

        foreach (string keyName in subkeyNames)
        {

            if (keyName.ToUpper() == value.ToUpper())   //判断键值的名称  
            {

                hkml.Close();

                return true;

            }

        }

        hkml.Close();

        return false;  

    }