diff --git a/.example.env b/.example.env
deleted file mode 100644
index c457fe5..0000000
--- a/.example.env
+++ /dev/null
@@ -1,11 +0,0 @@
-APP_DEBUG = true
-
-DB_TYPE = mysql
-DB_HOST = 127.0.0.1
-DB_NAME = test
-DB_USER = username
-DB_PASS = password
-DB_PORT = 3306
-DB_CHARSET = utf8
-
-DEFAULT_LANG = zh-cn
diff --git a/app/service/CrawlerService.php b/app/service/CrawlerService.php
index 4385628..f7e1e87 100644
--- a/app/service/CrawlerService.php
+++ b/app/service/CrawlerService.php
@@ -292,7 +292,7 @@ class CrawlerService
     }
 
     /**
-     * 计算竞争比（格式：招聘人数:审核通过人数，简化比例，保留2位小数）
+     * 计算竞争比（格式：1:比例，保留2位小数）
      * @param int $zprs 招聘人数
      * @param int $bkrs 审核通过人数
      * @return string
@@ -304,33 +304,13 @@ class CrawlerService
         }
         
         if ($bkrs <= 0) {
-            return $zprs . ':0';
+            return '1:0';
         }
         
-        // 计算最大公约数
-        $gcd = $this->gcd($zprs, $bkrs);
+        // 将招聘人数简化为1，计算审核通过人数与招聘人数的比例
+        $ratio = $bkrs / $zprs;
         
-        // 简化比例
-        $simplifiedZprs = $zprs / $gcd;
-        $simplifiedBkrs = $bkrs / $gcd;
-        
-        // 如果两个数都是整数，直接返回
-        if ($simplifiedZprs == intval($simplifiedZprs) && $simplifiedBkrs == intval($simplifiedBkrs)) {
-            return intval($simplifiedZprs) . ':' . intval($simplifiedBkrs);
-        }
-        
-        // 如果招聘人数是1，审核通过人数保留2位小数
-        if ($simplifiedZprs == 1) {
-            $bkrsFormatted = number_format($simplifiedBkrs, 2, '.', '');
-            // 如果小数部分是.00，则显示为整数
-            if (floatval($bkrsFormatted) == intval($bkrsFormatted)) {
-                return '1:' . intval($bkrsFormatted);
-            }
-            return '1:' . $bkrsFormatted;
-        }
-        
-        // 否则，将招聘人数简化为1，审核通过人数按比例计算并保留2位小数
-        $ratio = $simplifiedBkrs / $simplifiedZprs;
+        // 保留2位小数
         $ratioFormatted = number_format($ratio, 2, '.', '');
         
         // 如果小数部分是.00，则显示为整数
diff --git a/composer.json b/composer.json
index 22d37b8..b3b9509 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,8 @@
         "php": ">=8.0.0",
         "topthink/framework": "^8.0",
         "topthink/think-orm": "^3.0|^4.0",
-        "topthink/think-filesystem": "^2.0|^3.0"
+        "topthink/think-filesystem": "^2.0|^3.0",
+        "topthink/think-view": "^2.0"
     },
     "require-dev": {
         "topthink/think-dumper": "^1.0",
diff --git a/omposer b/omposer
new file mode 100644
index 0000000..c31d989
--- /dev/null
+++ b/omposer
@@ -0,0 +1,4 @@
+# Netscape HTTP Cookie File
+# https://curl.se/docs/http-cookies.html
+# This file was generated by libcurl! Edit at your own risk.
+
diff --git a/php b/php
new file mode 100644
index 0000000..e69de29
diff --git a/view/crawler/index.html b/view/crawler/index.html
index 046326c..dc30e2f 100644
--- a/view/crawler/index.html
+++ b/view/crawler/index.html
@@ -4,6 +4,8 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>职位信息爬虫工具</title>
+    <!-- SheetJS库用于导出XLSX -->
+    <script src="/static/js/xlsx.full.min.js"></script>
     <style>
         * {
             margin: 0;
@@ -331,7 +333,7 @@
                 </div>
             </div>
             <div class="action-buttons">
-                <button class="btn" onclick="fetchAllPositions()">自动抓取全部职位</button>
+                <button class="btn" id="fetch-all-btn" onclick="debouncedFetchAllPositions()">自动抓取全部职位</button>
             </div>
         </div>
         
@@ -339,7 +341,7 @@
         <div class="form-section">
             <h2>职位信息结果</h2>
             <div class="action-buttons" style="margin-bottom: 15px;">
-                <button class="btn btn-secondary" id="export-btn" onclick="exportCsv()" disabled>导出CSV</button>
+                <button class="btn btn-secondary" id="export-btn" onclick="exportXlsx()" disabled>导出XLSX</button>
             </div>
             <div id="result-message"></div>
             <div class="table-container" id="result-table" style="display: none;">
@@ -372,6 +374,24 @@
         let lastResults = [];
         let isCrawling = false; // 爬取状态标志
         
+        // 防抖函数
+        function debounce(func, wait) {
+            let timeout;
+            return function executedFunction(...args) {
+                const later = () => {
+                    clearTimeout(timeout);
+                    func(...args);
+                };
+                clearTimeout(timeout);
+                timeout = setTimeout(later, wait);
+            };
+        }
+        
+        // 防抖包装的抓取函数（300ms防抖）
+        const debouncedFetchAllPositions = debounce(() => {
+            fetchAllPositions();
+        }, 300);
+        
         // 页面加载时自动加载用户配置
         window.onload = function() {
             loadUserConfig();
@@ -710,6 +730,12 @@
 
         // 自动抓取全部职位代码并逐条获取详情（流式展示，避免超时）
         async function fetchAllPositions() {
+            // 如果正在爬取，直接返回
+            if (isCrawling) {
+                showMessage('result-message', '正在爬取中，请勿重复点击', 'error');
+                return;
+            }
+            
             const selectedDsdm = getSelectedDsdm();
             const examid = document.getElementById('examid').value.trim();
             const bmid = document.getElementById('bmid').value.trim();
@@ -733,10 +759,19 @@
                 return;
             }
 
-            // 开始爬取，禁用导出按钮
+            // 开始爬取，禁用所有相关按钮
             isCrawling = true;
-            document.getElementById('export-btn').disabled = true;
-            document.getElementById('export-btn').textContent = '爬取中...';
+            const fetchBtnStart = document.getElementById('fetch-all-btn');
+            const exportBtnStart = document.getElementById('export-btn');
+            
+            if (fetchBtnStart) {
+                fetchBtnStart.disabled = true;
+                fetchBtnStart.textContent = '爬取中...';
+            }
+            if (exportBtnStart) {
+                exportBtnStart.disabled = true;
+                exportBtnStart.textContent = '爬取中...';
+            }
             
             // 清空旧数据
             lastResults = [];
@@ -796,20 +831,22 @@
             
             // 爬取完成，恢复按钮状态
             isCrawling = false;
-            document.getElementById('export-btn').disabled = false;
-            document.getElementById('export-btn').textContent = '导出CSV';
-            showMessage('result-message', `爬取完成！共处理 ${processedCodes} 个职位`, 'success');
-
-            showMessage('result-message', `完成，共 ${lastResults.length} 条成功，失败 ${codes.length - lastResults.length} 条`, 'success');
+            const fetchBtnEnd = document.getElementById('fetch-all-btn');
+            const exportBtnEnd = document.getElementById('export-btn');
             
-            // 爬取完成，启用导出按钮
-            isCrawling = false;
-            document.getElementById('export-btn').disabled = false;
-            document.getElementById('export-btn').textContent = '导出CSV';
+            if (fetchBtnEnd) {
+                fetchBtnEnd.disabled = false;
+                fetchBtnEnd.textContent = '自动抓取全部职位';
+            }
+            if (exportBtnEnd) {
+                exportBtnEnd.disabled = false;
+                exportBtnEnd.textContent = '导出XLSX';
+            }
+            showMessage('result-message', `爬取完成！共处理 ${processedCodes} 个职位`, 'success');
         }
 
-        // 导出CSV
-        function exportCsv() {
+        // 导出XLSX
+        function exportXlsx() {
             if (isCrawling) {
                 showMessage('result-message', '爬取进行中，请等待完成后再导出', 'error');
                 return;
@@ -818,8 +855,17 @@
                 showMessage('result-message', '暂无数据可导出', 'error');
                 return;
             }
+            
+            // 检查SheetJS库是否加载
+            if (typeof XLSX === 'undefined') {
+                showMessage('result-message', '导出库加载失败，请刷新页面重试', 'error');
+                return;
+            }
+            
+            // 准备数据
             const headers = ['省份','地区','招聘单位/用人司局','职位名称','职位代码','招聘人数','审核通过人数','竞争比'];
-            const lines = [headers.join(',')];
+            const data = [headers];
+            
             lastResults.forEach(item => {
                 const row = [
                     item.sbmc || '',
@@ -829,18 +875,58 @@
                     item.zwdm || '',
                     item.zprs || 0,
                     item.bkrs || 0,
-                    item.competition_ratio || '0:0'
+                    item.competition_ratio || '0:0'  // 使用与网页显示一致的竞争比格式
                 ];
-                lines.push(row.map(v => `"${String(v).replace(/"/g, '""')}"`).join(','));
+                data.push(row);
             });
-            const blob = new Blob([lines.join('\n')], { type: 'text/csv;charset=utf-8;' });
-            const url = URL.createObjectURL(blob);
-            const link = document.createElement('a');
-            link.href = url;
-            link.download = 'positions.csv';
-            link.click();
-            URL.revokeObjectURL(url);
-            showMessage('result-message', '已导出CSV', 'success');
+            
+            // 创建工作簿
+            const wb = XLSX.utils.book_new();
+            const ws = XLSX.utils.aoa_to_sheet(data);
+            
+            // 设置列宽
+            const colWidths = [
+                { wch: 10 },  // 省份
+                { wch: 15 },  // 地区
+                { wch: 25 },  // 招聘单位/用人司局
+                { wch: 25 },  // 职位名称
+                { wch: 15 },  // 职位代码
+                { wch: 12 },  // 招聘人数
+                { wch: 15 },  // 审核通过人数
+                { wch: 12 }   // 竞争比
+            ];
+            ws['!cols'] = colWidths;
+            
+            // 设置表头样式（如果需要）
+            const headerRange = XLSX.utils.decode_range(ws['!ref']);
+            for (let col = headerRange.s.c; col <= headerRange.e.c; col++) {
+                const cellAddress = XLSX.utils.encode_cell({ r: 0, c: col });
+                if (!ws[cellAddress]) continue;
+                ws[cellAddress].s = {
+                    font: { bold: true },
+                    fill: { fgColor: { rgb: "E0E0E0" } },
+                    alignment: { horizontal: "center", vertical: "center" }
+                };
+            }
+            
+            // 竞争比列设置为文本格式，防止被当作数字或日期
+            const competitionColIndex = 7; // 第8列
+            for (let r = 1; r < data.length; r++) { // 从第2行开始，跳过表头
+                const addr = XLSX.utils.encode_cell({ r, c: competitionColIndex });
+                if (ws[addr]) {
+                    ws[addr].t = 's';
+                    ws[addr].z = '@';
+                }
+            }
+            
+            // 将工作表添加到工作簿
+            XLSX.utils.book_append_sheet(wb, ws, '职位信息');
+            
+            // 导出文件
+            const fileName = 'positions_' + new Date().toISOString().slice(0, 10).replace(/-/g, '') + '.xlsx';
+            XLSX.writeFile(wb, fileName);
+            
+            showMessage('result-message', '已导出XLSX', 'success');
         }
         
         // 显示消息