织梦图集 上传图片小于设定尺寸 缩略图生成失败的解决办法

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。