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Azureの実験で作成されたJSONから写真を撮るWebアプリケーションを開発しています。 私は以下の機能を持っています。Azure：ピクチャを含むbase64の文字列をデコードする
public static Image Base64ToImage(string base64String)
{
try
{
byte[] imageBytes = System.Text.Encoding.UTF8.GetBytes(base64String);//Convert.FromBase64String(base64String);
MemoryStream ms1 = new MemoryStream(imageBytes,0,imageBytes.Length);
ms1.Write(imageBytes, 0, imageBytes.Length);
Image NewImage = Image.FromStream(ms1, true);
NewImage.Save(@"C:\TESTOK.jpg");
return NewImage;
}
catch (Exception ex)
{
string appo = ex.Message.ToString() + ex.InnerException.ToString();
return null;
}
}
Azureウェブサービスによって生成された文字列（コード化された画像）を受け取ります。私は機能Image.FromStream(ms1, true);を介して画像を作成しようとすると、それはエラーを返す例外を生成します。
"Parameter is not valid".
入力文字列は以下の通りです。
$ base64 -d string > stringDecoded
base64: invalid input
$ base64 -d -i string > stringDecoded
$
--ignore-ごみの略-iパラメータ：デコード時に*、無視は、非アルファベット文字
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は、私は、コマンドラインから画像を解読しようとしています。だから、これは解決すべき問題です。あなたがdecb64を使用して同じことを行うことができますWindowsの場合 ：
> dec64 stringa.txt
だから、問題は私の文字列は、英数字以外の文字が含まれていることであることは明らかと思われます。この問題を解決するためにコードを変更するにはどうすればよいですか？
