diff --git a/tool_core.js b/tool_core.js
index 2e83320..632fb67 100644
--- a/tool_core.js
+++ b/tool_core.js
@@ -286,7 +286,10 @@ module.exports = {
     let parent = root || globalThis || global || window || {}
     let keychain = path.split('.')
     for (let key of keychain) {
-      if (typeof parent === 'object' && /^\w+\(.*\)$/.test(key)) {
+      if (!parent) {
+        // 如果 parent 是 null 或 undefined，直接返回空值。
+        return emptyValue
+      } else if (typeof parent === 'object' && /^\w+\(.*\)$/.test(key)) {
         // 支持 myfunc(param) 作为一个路径节点。
         let [all, func, param] = key.match(/^(\w+)\((.*)\)$/)
         parent = parent[func](param)
@@ -352,7 +355,7 @@ module.exports = {
   summarize_story (story = []) {
     // story is an array of objects, each object could either be {text:'some string'}, {image: url} or {video:url}. Please construct a summary object as result: { textLength, imageCount, VideoCount }
     return story.reduce(
-      (summary, { text, image, video, file } = {}) => {
+      (summary, { text, image, video, file, linkTarget } = {}) => {
         if (text) {
           summary.textLength += text.length
           summary.wordCount += text.split(/\s+/).length
@@ -362,10 +365,14 @@ module.exports = {
           summary.videoCount++
         } else if (file) {
           summary.fileCount++
+        } else if (linkTarget) {
+          summary.linkCount++
+        } else {
+          summary.untype++
         }
         return summary
       },
-      { textLength: 0, wordCount: 0, imageCount: 0, videoCount: 0 }
+      { textLength: 0, wordCount: 0, imageCount: 0, videoCount: 0, file: 0, link: 0, untype: 0 }
     )
   },
 
@@ -462,6 +469,7 @@ module.exports = {
     })
   },
 
+  // 洗牌算法，随机打乱数组顺序
   shuffle_array (array = []) {
     if (Array.isArray(array)) {
       for (let i = array.length - 1; i > 0; i--) {
@@ -473,6 +481,6 @@ module.exports = {
   },
 
   is_uuid (uuid) {
-    return /^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i.test(unid)
+    return /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i.test(uuid)
   },
 }
diff --git a/tool_uniapp.js b/tool_uniapp.js
index 1cd49d3..8a02484 100644
--- a/tool_uniapp.js
+++ b/tool_uniapp.js
@@ -66,9 +66,8 @@ module.exports = {
       return i18nText
     } else if (typeof i18nText === 'object' && i18nText) {
       return (
-        i18nText?.[langCode] ||
-        i18nText?.[my.get_mylang()] ||
-        (precise ? '' : i18nText?.earTH || i18nText?.defLAN || i18nText?.gloBAL || i18nText?.enUS || Object.values(i18nText)[0] || '')
+        i18nText[langCode || my.get_mylang()] ||
+        (precise ? '' : i18nText.earTH || i18nText.gloBAL || i18nText.defLAN || i18nText.enUS || Object.values(i18nText)[0] || '')
       )
     } else {
       return ''
@@ -97,7 +96,11 @@ module.exports = {
     )
 
     windowTitle =
-      windowTitle || wo?.envar?.callnames?.[langNow] || wo?.pagesJson?.appInfo?.i18nText?.[langNow] || wo?.pagesJson?.globalStyle?.navigationBarTitleText || ''
+      windowTitle ||
+      this.localizeText(wo?.envar?.callnames, { langCode: langNow }) ||
+      this.localizeText(wo?.pagesJson?.appInfo?.i18nText, { langCode: langNow }) ||
+      wo?.pagesJson?.globalStyle?.navigationBarTitleText ||
+      ''
 
     if (wo.envar._clientInfo.deviceType === 'pc') {
       uni.setNavigationBarTitle({ title: windowTitle + (navibarTitle ? ` - ${navibarTitle}` : '') })