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				@@ -1,48 +1,44 @@ 
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				 function fileList(list) { 
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				-    if (list.length == 0) return []; 
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				-    let suffixList = { 
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				-            image: ['png', 'jpg', 'jpeg', 'bmp', 'gif', 'webp', 'svg', 'tiff'], 
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				-            video: ['mp4', 'ogg', 'webm'], 
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				-            word: ['doc', 'docx'], 
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				-            excel: ['xls', 'xlsx'], 
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				-            ppt: ['ppt', 'pptx'], 
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				-            txt: ['txt', 'md', 'js', 'json'], 
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				-            pdf: ['pdf'], 
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				-            rar: ['7z', 'zip', 'rar', 'kz', 'ace', 'arj', 'bz2', 'cab', 'gz', 'iso', 'jar', 'lzh', 'tar', 'z'], 
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				-            folder: ['"folder"'] 
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				-        }, 
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				-        typeList = []; 
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				-    for (let key in suffixList) typeList.push(key); 
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				-    for (let i = 0; i < list.length; i++) { 
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				-        list[i].fileType = 'unknown'; 
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				-        list[i].cover = `/static/image/file/unknown.png` 
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				-        const suffix = list[i].postfix.toLowerCase(); 
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				-        if (suffix != "folder") { 
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				-            for (let key in suffixList) { 
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				-                if (suffixList[key].some(value => value == suffix)) { 
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				-                    list[i].fileType = key; 
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				-                    if (key == 'image') { 
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				-                        list[i].cover = list[i].url; 
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				-                    } else if (typeList.includes(key)) { 
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				-                        list[i].cover = `/static/image/file/${key}.png`; 
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				-                    } 
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				-                } 
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				-            } 
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				-        } else { 
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				-            list[i].fileType = "folder"; 
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				-            list[i].cover = `/static/image/file/folder.png` 
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				-        } 
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				-    } 
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				-    return list; 
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				-}; 
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				+    if (!Array.isArray(list) || list.length === 0) return []; 
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				+ 
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				+    const suffixList = { 
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				+        image: ['png', 'jpg', 'jpeg', 'bmp', 'gif', 'webp', 'svg', 'tiff'], 
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				+        video: ['mp4', 'ogg', 'webm'], 
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				+        word: ['doc', 'docx'], 
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				+        excel: ['xls', 'xlsx'], 
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				+        ppt: ['ppt', 'pptx'], 
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				+        txt: ['txt', 'md', 'js', 'json'], 
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				+        pdf: ['pdf'], 
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				+        rar: ['7z', 'zip', 'rar', 'kz', 'ace', 'arj', 'bz2', 'cab', 'gz', 'iso', 'jar', 'lzh', 'tar', 'z'], 
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				+        folder: ['folder'] 
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				+    }; 
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				+ 
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				+    return list.map(file => { 
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				+        const suffix = file.postfix ? file.postfix.toLowerCase() : ''; 
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				+        const fileType = suffixList.folder.includes(suffix) ? 'folder' :  
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				+                         Object.keys(suffixList).find(key => suffixList[key].includes(suffix)) || 'unknown'; 
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				+ 
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				+        return { 
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				+            ...file, 
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				+            fileType, 
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				+            cover: fileType === 'image' ? file.url :  
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				+                   fileType !== 'unknown' ? `/static/image/file/${fileType}.png` :  
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				+                   `/static/image/file/unknown.png` 
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				+        }; 
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				+    }); 
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				+} 
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				+ 
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				 //得到缩略图或者压缩图  getType默认得到缩略图传true得到压缩图 
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				 function getSpecifiedImage(obj, getType = false) { 
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				-    let type = getType ? 'compressed' : 'thumbnail'; 
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				-    let imgObj = obj.subfiles.find(v => v.type == type); 
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				+    if (!obj || !Array.isArray(obj.subfiles)) return ""; 
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				+ 
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				+    const type = getType ? 'compressed' : 'thumbnail'; 
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				+    const imgObj = obj.subfiles.find(v => v.type === type); 
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				     return imgObj ? imgObj.url : ""; 
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				 } 
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				+ 
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				 module.exports = { 
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				     fileList, 
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				     getSpecifiedImage 
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