将字符串 [] 转换为 base64

Question

I am opening a file encoded in base64 and I need to decode it

string[] lines = File.ReadAllLines(open1.FileName);

is there anyway to do this? I have tried doing this.

string[] lines = File.ReadAllLines(Convert.ToBase64String(open1.FileName));

Answer 1

you question is not clear

if you want to convert string[] to array of base64 you can do this :

 public static string[] ToBase64(string[] text)
    {
        var encodedArray = new string[text.Length];

        for (var index = 0; index < text.Length; index++)
        {
            var line = text[index];
            var encoded = Convert.ToBase64String(Encoding.UTF8.GetBytes(line));
            encodedArray[index] = encoded;
        }
        return encodedArray;
    }

this return your array with each line encoded in base64. and to reverse it :

 public static string[] ToString(string[] encodedString)
    {
        var decodedArray = new string[encodedString.Length];
        for (var i = 0; i < encodedString.Length; i++)
        {
            var line = encodedString[i];
            var decoded = Convert.FromBase64String(line);
            decodedArray[i] = Encoding.UTF8.GetString(decoded);
        }

        return decodedArray;
    }