//éåimagesç®å½ä¸ææpngæ ¼å¼å¾ç
DirectoryInfo imagesfile = new DirectoryInfo(Server.MapPath(@"~/images"));
DataList1.DataSource = imagesfile.GetFiles("*.png");
DataList1.DataBind();
//åçæææçå¾çæ ¼å¼çåç¼æ¾å°æ°ç»éå°±å¯ä»¥éåææçå¾çäº
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