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private void btnUploadPicture_Click(object sender, System.EventArgs e)
{
//¼ì²éÉÏ´«ÎļþµÄ¸ñʽÊÇ·ñÓÐЧ
if(this.UploadFile.PostedFile.ContentType.ToLower().IndexOf("image") < 0)
{
Response.Write("ÉÏ´«Í¼Æ¬¸ñʽÎÞЧ£¡");
return;
}
//Éú³ÉÔͼ
Byte[] oFileByte = new byte[this.UploadFile.PostedFile.ContentLength];
System.IO.Stream oStream = this.UploadFile.PostedFile.InputStream;
System.Drawing.Image oImage = System.Drawing.Image.fromStream(oStream);
int oWidth = oImage.Width; //Ôͼ¿í¶È
int oHeight = oImage.Height; //Ôͼ¸ß¶È
int tWidth = 100; //ÉèÖÃËõÂÔͼ³õʼ¿í¶È
int tHeight = 100; //ÉèÖÃËõÂÔͼ³õʼ¸ß¶È
//°´±ÈÀý¼ÆËã³öËõÂÔͼµÄ¿í¶ÈºÍ¸ß¶È
if(oWidth >= oHeight)
{
tHeight = (int)Math.Floor(Convert.ToDouble(oHeight) * (Convert.ToDouble(tWidth) / Convert.ToDouble(oWidth)));
}
else
{
tWidth = (int)Math.Floor(Convert.ToDouble(oWidth) * (Convert.ToDouble(tHeight) / Convert.ToDouble(oHeight)));
}
//Éú³ÉËõÂÔÔͼ
Bitmap tImage = new Bitmap(tWidth,tHeight);
Graphics g = Graphics.fromImage(tImage);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //ÉèÖøßÖÊÁ¿²åÖµ·¨
g.SmoothingMode = System.Drawin
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