diff --git a/niucloud/app/service/api/student/ContractService.php b/niucloud/app/service/api/student/ContractService.php
index 5282356c..52873268 100755
--- a/niucloud/app/service/api/student/ContractService.php
+++ b/niucloud/app/service/api/student/ContractService.php
@@ -64,25 +64,25 @@ class ContractService extends BaseService
         foreach ($list as &$contract) {
             // 状态文本映射
             $contract['status_text'] = $this->getStatusText($contract['status']);
-            
+
             // 获取合同相关的课程信息
             $courseInfo = $this->getContractCourseInfo($contract['contract_id'], $studentId);
             $contract = array_merge($contract, $courseInfo);
-            
+
             // 格式化日期
             $contract['sign_date'] = $contract['sign_time'] ? date('Y-m-d', strtotime($contract['sign_time'])) : null;
             $contract['create_date'] = date('Y-m-d', strtotime($contract['created_at']));
-            
+
             // 文件路径处理
             $contract['contract_file_url'] = $contract['contract_template'] ? get_image_url($contract['contract_template']) : '';
-            
+
             // 计算课时使用进度
             if ($contract['total_hours'] > 0) {
                 $contract['progress_percent'] = round(($contract['used_hours'] / $contract['total_hours']) * 100, 1);
             } else {
                 $contract['progress_percent'] = 0;
             }
-            
+
             // 判断是否可以续约（生效状态且课时即将用完）
             $contract['can_renew'] = $contract['status'] == 3 && $contract['remaining_hours'] <= 5;
         }
@@ -158,7 +158,7 @@ class ContractService extends BaseService
 
         // 合同条款（如果有内容的话）
         $contractSign['terms'] = $contractSign['contract_content'] ?: $contractSign['remarks'];
-        
+
         // 对于已签署成功的合同（status=3），进行占位符替换
         if ($contractSign['status'] == 3 && !empty($contractSign['terms'])) {
             $contractSign['terms'] = $this->replacePlaceholdersInTerms(
@@ -207,7 +207,9 @@ class ContractService extends BaseService
         if (!$contract) {
             throw new CommonException('合同模板不存在');
         }
-
+        if(!empty($contract['contract_content'])){
+            $contract['contract_content'] = replace_placeholders_with_underlines($contract['contract_content']);
+        }
         // 获取所有字段配置
         $formFields = Db::table('school_document_data_source_config')
             ->where('contract_id', $contractId)
@@ -287,10 +289,10 @@ class ContractService extends BaseService
 
         // 从form_data中提取签名图片路径
         $extractedSignatures = $this->extractSignatureImages($formData);
-        
+
         // 上传并处理签名图片
         $processedSignatures = $this->uploadSignatureImages($extractedSignatures);
-        
+
         // 更新form_data中的签名路径为服务器路径
         $formData = $this->updateFormDataWithUploadedPaths($formData, $processedSignatures);
 
@@ -332,7 +334,7 @@ class ContractService extends BaseService
             }
 
             Db::commit();
-            
+
             return [
                 'sign_id' => $contractSign['id'],
                 'generated_file' => $generatedFile,
@@ -561,7 +563,7 @@ class ContractService extends BaseService
             $contract = Db::table('school_contract')
                 ->where('id', $contractId)
                 ->find();
-            
+
             if (!$contract || !$contract['contract_template']) {
                 throw new CommonException('合同模板不存在');
             }
@@ -598,11 +600,11 @@ class ContractService extends BaseService
             if ($signatureImage && $this->hasSignaturePlaceholder($templateProcessor)) {
                 // 处理签名图片 - 支持base64和URL
                 $signImagePath = $this->processSignatureImage($signatureImage);
-                
+
                 // 使用ContractSign服务插入签名
                 $contractSignService = new ContractSign();
                 $contractSignService->setSign($templatePath, $outputFullPath, $signImagePath, '学员签名');
-                
+
                 // 清理临时文件
                 if (file_exists($signImagePath)) {
                     unlink($signImagePath);
@@ -792,14 +794,14 @@ class ContractService extends BaseService
     private function extractSignatureImages($formData)
     {
         $signatures = [];
-        
+
         // 常见的签名字段模式
         $signaturePatterns = ['签名', '乙方', '甲方', '学员签名'];
-        
+
         foreach ($formData as $key => $value) {
             // 检查是否为图片URL（临时路径或正式路径）
             if (is_string($value) && (
-                strpos($value, 'http://tmp/') === 0 || 
+                strpos($value, 'http://tmp/') === 0 ||
                 strpos($value, 'https://tmp/') === 0 ||
                 preg_match('/\.(png|jpg|jpeg|gif)$/i', $value)
             )) {
@@ -812,7 +814,7 @@ class ContractService extends BaseService
                 }
             }
         }
-        
+
         return $signatures;
     }
 
@@ -824,7 +826,7 @@ class ContractService extends BaseService
     private function uploadSignatureImages($signatures)
     {
         $processed = [];
-        
+
         foreach ($signatures as $key => $imagePath) {
             try {
                 // 如果是临时路径，需要下载并保存
@@ -834,18 +836,18 @@ class ContractService extends BaseService
                     $filename = 'signature_' . date('YmdHis') . '_' . mt_rand(1000, 9999) . '.png';
                     $relativePath = 'signatures/' . date('Y/m/') . $filename;
                     $fullPath = public_path() . '/upload/' . $relativePath;
-                    
+
                     // 确保目录存在
                     $dir = dirname($fullPath);
                     if (!is_dir($dir)) {
                         mkdir($dir, 0755, true);
                     }
-                    
+
                     // 尝试下载临时文件（实际环境中需要通过微信API）
                     // 这里模拟处理，生成一个占位文件
                     $placeholderContent = base64_decode('iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==');
                     file_put_contents($fullPath, $placeholderContent);
-                    
+
                     $processed[$key] = $relativePath;
                 } else {
                     // 已经是正式路径，直接使用
@@ -857,7 +859,7 @@ class ContractService extends BaseService
                 $processed[$key] = $imagePath; // 保持原路径
             }
         }
-        
+
         return $processed;
     }
 
@@ -874,14 +876,14 @@ class ContractService extends BaseService
                 $formData[$key] = $newPath;
             }
         }
-        
+
         return $formData;
     }
 
     /**
      * 在合同条款中替换占位符
      * 使用 school_document_data_source_config 表中的 default_value 数据进行替换
-     * 
+     *
      * @param string $terms 合同条款内容
      * @param int $contractId 合同模板ID
      * @param int $contractSignId 合同签署记录ID
@@ -1134,4 +1136,4 @@ class ContractService extends BaseService
         return (string)$value;
     }
 
-  }
\ No newline at end of file
+  }