小程序优化
直接从新闻组贴过来的，见谅。

Dear   all,
I   made   a   c#   program   for   my   friend 's   wedding.   It   slides   all   photos   in  
specified   folder   automatically.   To   roll   the   pictures   smoothly   I   firstly   scan   and   store   all   pictures   in   RAM   and   push   one   by   one   to   PictureBox   control   and   display   it   when   the   Timer   control   ticks.   Coding   like   this:

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IList <Image>   photoes   =   new   List <Image> ();
LoadPhotoes(PhotoSlide.Properties.Settings.Default.PhotoFolder,   ref  
photoes);

private   void   LoadPhotoes(string   folderPath,   ref   IList <Image>   photoes)
    {
      DirectoryInfo   currentDir   =   new   DirectoryInfo(folderPath);
      if   (currentDir.Exists)
      {
        DirectoryInfo[]   subDirs   =   currentDir.GetDirectories();
        foreach   (DirectoryInfo   dir   in   subDirs)
        {
          LoadPhotoes(dir.FullName,   ref   photoes);
        }

        FileInfo[]   files   =   currentDir.GetFiles();
        foreach   (FileInfo   file   in   files)
        {
          string   fileExt   =   file.Extension.ToUpper();
          if   (fileExt   ==   ".JPG "   ||   fileExt   ==   ".JPEG ")
          {
            using   (FileStream   stream   =   file.OpenRead())
            {
              photoes.Add(Image.FromStream(stream));
            }
          }
        }
      }
    }
...   ...
this.pictureBox1.Image   =   GetSlidePhoto(photoes,   lastPhotoIndex);
----------------------------------

The   code   can   work,   but   it   sucks   the   memory   very   much.   As   you   see,   this   line   of   code   -   /*   photoes.Add(Image.FromStream(stream));   */     will   stack   all   Image   objects   in   RAM.   In   my   test,   I   slide   about   50   pictures   which   are   total   about   50   Mb(   ~   1   Mb   for   1   picture),   it   costs   300Mb   RAM   to   run   it.

Do   you   have   any   idea   to   improve   this   small   program?   Thanks.

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这英文难道是中国人写的,我程度那么差居然都看懂了,代码写的也很清晰...
不过就是不知道~~
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顶下
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