ASP.Net常用功能整理--生成图片的缩略图

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源代码：

命名空间：
usingSystem.IO;
核心代码：
System.Drawing.Image.GetThumbnailImageAbort callb=null;
try
{
//保存到指定的文件夹
File1.PostedFile.SaveAs(Server.MapPath("/semir/ImgSides/")+sidePath);
MyImage=System.Drawing.Image.FromFile(Server.MapPath("/semir/ImgSides/")+sidePath);
//保存大图(原图)
NewImage=MyImage.GetThumbnailImage(800,1000,callb,newSystem.IntPtr());
NewImage.Save(Server.MapPath("/semir/ImgSides/")+"big"+sidePath);
//保存中图
NewImage=MyImage.GetThumbnailImage(400,500,callb,newSystem.IntPtr());
NewImage.Save(Server.MapPath("/semir/ImgSides/")+"middle"+sidePath);

//单款衣服的图片大小

NewImage= MyImage.GetThumbnailImage(255,319,callb,newSystem.IntPtr());
NewImage.Save(Server.MapPath("/semir/ImgSides/")+"SingleImage"+sidePath);

//保存小图
NewImage=MyImage.GetThumbnailImage(115,144,callb,newSystem.IntPtr());
NewImage.Save(Server.MapPath("/semir/ImgSides/")+"small"+sidePath);
//保存极小图
NewImage=MyImage.GetThumbnailImage(45,56,callb,newSystem.IntPtr());
NewImage.Save(Server.MapPath("/semir/ImgSides/")+"dinky"+sidePath); MyImage.Dispose();
NewImage.Dispose();
//一定要释放，否则进程被占用
}
catch(Exceptionex)
{
Response.Write(ex.ToString());
}