织梦图集中，上传的图片像素宽高小于系统设置定的这个尺寸：较小的这些图片就会无法生成缩略图，导致图集在网页上缩略图显示X叉号，这应该是织梦DEDEcms的一个历史遗漏bug，可用下面方法修复。
/include/helpers/，这个文件中搜索，下面的代码：01if($srcW<=$toW && $srcH<=$toH ) return TRUE;02 $toWH=$toW/$toH;03 $srcWH=$srcW/$srcH;04 if($toWH<=$srcWH)05 {06 $ftoW=$toW;07 $ftoH=$ftoW*($srcH/$srcW);08 }09 else10 {11 $ftoH=$toH;12 $ftoW=$ftoH*($srcW/$srcH);13 }
然后用下面的大片代码替换：01$ftoW=$toH;02[size=; font-size: inherit,inherit] $ftoH=$toH;03 ///04[size=; font-size: inherit,inherit] if( $srcH<=$toH && $srcW<=$toW )05[size=; font-size: inherit,inherit] {06[size=; font-size: inherit,inherit] $ftoW=$srcW;07[size=; font-size: inherit,inherit] $ftoH=$srcH;08[size=; font-size: inherit,inherit] if(function_exists("imagecreatetruecolor"))09[size=; font-size: inherit,inherit] {10[size=; font-size: inherit,inherit] @$ni = imagecreatetruecolor($ftoW,$ftoH);11[size=; font-size: inherit,inherit] if($ni)12[size=; font-size: inherit,inherit] {13[size=; font-size: inherit,inherit] imagecopyresampled($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);14[size=; font-size: inherit,inherit] }15[size=; font-size: inherit,inherit] else16[size=; font-size: inherit,inherit] {17[size=; font-size: inherit,inherit] $ni=imagecreate($ftoW,$ftoH);18[size=; font-size: inherit,inherit] imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);19[size=; font-size: inherit,inherit] }20[size=; font-size: inherit,inherit] }21[size=; font-size: inherit,inherit] else22[size=; font-size: inherit,inherit] {23[size=; font-size: inherit,inherit] $ni=imagecreate($ftoW,$ftoH);24[size=; font-size: inherit,inherit] imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);25[size=; font-size: inherit,inherit] }26[size=; font-size: inherit,inherit] switch ($srcInfo[2])27[size=; font-size: inherit,inherit] {28[size=; font-size: inherit,inherit] case 1:29[size=; font-size: inherit,inherit] imagegif($ni,$toFile);30[size=; font-size: inherit,inherit] break;31[size=; font-size: inherit,inherit] case 2:32[size=; font-size: inherit,inherit] imagejpeg($ni,$toFile,100);33[size=; font-size: inherit,inherit] break;34[size=; font-size: inherit,inherit] case 3:35[size=; font-size: inherit,inherit] imagepng($ni,$toFile);36[size=; font-size: inherit,inherit] break;37[size=; font-size: inherit,inherit] case 6:38[size=; font-size: inherit,inherit] imagebmp($ni,$toFile);39[size=; font-size: inherit,inherit] break;40[size=; font-size: inherit,inherit] default:41[size=; font-size: inherit,inherit] return false;42[size=; font-size: inherit,inherit] }43[size=; font-size: inherit,inherit] imagedestroy($ni);44[size=; font-size: inherit,inherit] } ///4546 $toWH=$toW/$toH;47 $srcWH=$srcW/$srcH;48 if($toWH<=$srcWH)49 {50 $ftoW=$toW;51 $ftoH=$ftoW*($srcH/$srcW);52 }53 else54 {55 $ftoH=$toH;56 $ftoW=$ftoH*($srcW/$srcH);57 }这样织梦上传的图，就不会显示x号了。
