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//图片转为base64编码的字符串
public static string ImgToBase64String(Bitmap bmp)
{
try
{
MemoryStream ms = new MemoryStream();
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] arr = new byte[ms.Length];
ms.Position = 0;
ms.Read(arr, 0, (int)ms.Length);
ms.Close();
return Convert.ToBase64String(arr);
}
catch
{
return null;
}
}
//base64编码的字符串转为图片
public static Bitmap Base64StringToImage(string strbase64)
{
try
{
byte[] arr = Convert.FromBase64String(strbase64);
MemoryStream ms = new MemoryStream(arr);
Image mImage = Image.FromStream(ms);
Bitmap bmp = new Bitmap(mImage);
ms.Close();
mImage.Dispose();
return bmp;
}
catch
{
return null;
}
}