C#中byte[]与string的转换

1、
        System.Text.UnicodeEncoding converter = new System.Text.UnicodeEncoding();
        byte[] inputBytes =converter.GetBytes(inputString);
        string  inputString = converter.GetString(inputBytes);
2、
        string inputString = System.Convert.ToBase64String(inputBytes);
        byte[] inputBytes = System.Convert.FromBase64String(inputString);