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：
01 if($srcW<=$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 else
10 {
11 $ftoH=$toH;
12 $ftoW=$ftoH*($srcW/$srcH);
13 }
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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] else
16 [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] else
22 [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] } ///
45
46 $toWH=$toW/$toH;
47 $srcWH=$srcW/$srcH;
48 if($toWH<=$srcWH)
49 {
50 $ftoW=$toW;
51 $ftoH=$ftoW*($srcH/$srcW);
52 }
53 else
54 {
55 $ftoH=$toH;
56 $ftoW=$ftoH*($srcW/$srcH);
57 }
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这样织梦上传的图，就不会显示x号了。
