diff --git a/Report_Viewer.html b/Report_Viewer.html
index d357e01..630da76 100644
--- a/Report_Viewer.html
+++ b/Report_Viewer.html
@@ -57,6 +57,14 @@
     </div>
 
     <div class="container">
+        <div id="file-selector-container" style="margin-bottom: 20px; background: white; padding: 15px; border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); display: flex; align-items: center; gap: 15px;">
+            <button id="btnSelectDir" class="btn btn-primary" onclick="pickDirectory()"></button>
+            <span id="t-label-files" style="font-weight: 600; color: #636e72;"></span>
+            <select id="fileDropdown" style="flex-grow: 1; padding: 8px 12px; border-radius: 8px; border: 1px solid #ddd; outline: none; cursor: pointer;" onchange="loadSelectedFile(this.value)">
+                <option value="" disabled selected id="t-select-placeholder"></option>
+            </select>
+        </div>
+
         <div id="drop-zone">
             <p id="t-drop-hint"></p>
             <span id="t-click-hint" style="color: #95a5a6;"></span>
@@ -86,8 +94,8 @@
     <script>
         // 内置默认语言
         const defaultI18n = {
-            zh: { name: "简体中文", dropHint: "📂 <b>拖入</b>生成的文件到这里", clickHint: "或者 点击此处手动选择", labelMatch: "一致 (Match)", labelMismatch: "损坏 (Mismatch)", labelMissing: "缺失 (Missing)", labelExtra: "多余 (Extra)", btnExpand: "全部展开", btnCollapse: "全部收起", modeFull: "显示模式：完整清单", modeError: "显示模式：只看异常", loadSuccess: "✅ 已加载：", files: " 个文件" },
-            en: { name: "English", dropHint: "📂 <b>Drag</b> your file here", clickHint: "or click to select manually", labelMatch: "Match", labelMismatch: "Mismatch", labelMissing: "Missing", labelExtra: "Extra", btnExpand: "Expand All", btnCollapse: "Collapse All", modeFull: "View: All Files", modeError: "View: Errors Only", loadSuccess: "✅ Loaded: ", files: " files" }
+            zh: { name: "简体中文", dropHint: "📂 <b>拖入</b>生成的文件到这里", clickHint: "或者 点击此处手动选择", labelMatch: "一致 (Match)", labelMismatch: "损坏 (Mismatch)", labelMissing: "缺失 (Missing)", labelExtra: "多余 (Extra)", btnExpand: "全部展开", btnCollapse: "全部收起", modeFull: "显示模式：完整清单", modeError: "显示模式：只看异常", loadSuccess: "✅ 已加载：", files: " 个文件", labelFiles: "切换文件：", selectPlaceholder: "--- 请选择已加载的报告 ---", btnPickDir: "📂 选择结果目录" },
+            en: { name: "English", dropHint: "📂 <b>Drag</b> your file here", clickHint: "or click to select manually", labelMatch: "Match", labelMismatch: "Mismatch", labelMissing: "Missing", labelExtra: "Extra", btnExpand: "Expand All", btnCollapse: "Collapse All", modeFull: "View: All Files", modeError: "View: Errors Only", loadSuccess: "✅ Loaded: ", files: " files", labelFiles: "Switch File:", selectPlaceholder: "--- Select a loaded report ---", btnPickDir: "📂 Open Directory" }
         };
 
         // 合并外部语言
@@ -95,8 +103,46 @@
         let currentLang = 'zh';
         let globalData = "";
         let errorMode = false;
+        let fileHandles = {}; // 存储文件句柄
+
+        // 文件夹选择器逻辑 (File System Access API)
+        async function pickDirectory() {
+            try {
+                const directoryHandle = await window.showDirectoryPicker();
+                const dropdown = document.getElementById('fileDropdown');
+                dropdown.innerHTML = `<option value="" disabled selected>${allI18n[currentLang].selectPlaceholder}</option>`;
+                fileHandles = {};
+                
+                for await (const entry of directoryHandle.values()) {
+                    if (entry.kind === 'file' && entry.name.endsWith('.txt')) {
+                        fileHandles[entry.name] = entry;
+                        const opt = document.createElement('option');
+                        opt.value = entry.name;
+                        opt.innerText = entry.name;
+                        dropdown.appendChild(opt);
+                    }
+                }
+                alert(`已成功加载 ${Object.keys(fileHandles).length} 个报告文件。`);
+            } catch (err) {
+                if (err.name !== 'AbortError') {
+                    console.error('选择目录失败:', err);
+                    alert('浏览器不支持该功能或选择失败，请确保使用 Chrome/Edge 并授予权限。');
+                }
+            }
+        }
+
+        async function loadSelectedFile(fileName) {
+            const handle = fileHandles[fileName];
+            if (handle) {
+                const file = await handle.getFile();
+                const text = await file.text();
+                globalData = text;
+                processData(globalData);
+            }
+        }
 
         // 初始化语言选择器
+        
         const langSelect = document.getElementById('langSelect');
         Object.keys(allI18n).forEach(key => {
             const opt = document.createElement('option');
@@ -121,6 +167,9 @@
             document.getElementById('t-label-extra').innerText = t.labelExtra;
             document.getElementById('t-btn-expand').innerText = t.btnExpand;
             document.getElementById('t-btn-collapse').innerText = t.btnCollapse;
+            document.getElementById('t-label-files').innerText = t.labelFiles;
+            document.getElementById('t-select-placeholder').innerText = t.selectPlaceholder;
+            document.getElementById('btnSelectDir').innerText = t.btnPickDir;
             const filterBtn = document.getElementById('toggleFilterBtn');
             filterBtn.innerText = errorMode ? t.modeError : t.modeFull;
             filterBtn.className = errorMode ? 'btn btn-danger' : 'btn btn-primary';
@@ -152,6 +201,11 @@
         }
 
         function processData(text) {
+            if (!text) return;
+            // 处理 PowerShell 偶尔可能返回数组或非字符串对象的情况
+            if (Array.isArray(text)) text = text.join('\n');
+            if (typeof text !== 'string') text = String(text);
+
             const lines = text.split(/\r?\n/);
             const tree = {};
             const stats = {'=':0, '*':0, '-':0, '+':0};