diff --git a/app.php b/app.php
index dfa36f2..f102be8 100644
--- a/app.php
+++ b/app.php
@@ -10,17 +10,22 @@ if (!isset($_GET['id']) || !is_numeric($_GET['id'])) {
 $appId = $_GET['id'];
 
 // 获取App信息
-$sqlApp = "SELECT apps.*, AVG(reviews.rating) as avg_rating 
+$sqlApp = "SELECT apps.*, apps.developer_id, developers.username as developer_name, AVG(reviews.rating) as avg_rating 
            FROM apps 
+           LEFT JOIN developers ON apps.developer_id = developers.id
            LEFT JOIN reviews ON apps.id = reviews.app_id 
            WHERE apps.id = $appId 
-           GROUP BY apps.id"; 
+           GROUP BY apps.id, apps.developer_id, developers.username"; 
 $resultApp = $conn->query($sqlApp);
+if (!$resultApp) {
+    die("<h1>数据库查询错误</h1><p>错误信息: " . htmlspecialchars($conn->error) . "</p><p>SQL语句: " . htmlspecialchars($sqlApp) . "</p>");
+}
 $app = $resultApp->fetch_assoc();
+$developerId = $app['developer_id'] ?? 0;
+$developerName = ($developerId == 0) ? '管理员' : ($app['developer_name'] ?? '未知开发者');
 
 if (!$app) {
-    header('Location: index.php');
-    exit;
+    die("<h1>错误：应用不存在</h1><p>找不到ID为 $appId 的应用。请检查ID是否正确。</p>");
 }
 
 // 获取App版本信息
@@ -136,6 +141,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['rating'])) {
                     echo implode(', ', $platformTexts);
                 ?></p>
                 <p>评分: <?php echo round($app['avg_rating'], 1); ?>/5</p>
+                <p>开发者: <?php if ($developerId == 0 || empty($developerName)): ?>管理员<?php else: ?><a href="developer_apps.php?id=<?php echo $developerId; ?>"><?php echo htmlspecialchars($developerName); ?></a><?php endif; ?></p>
             </div>
             <div class="col-md-6">
                 <div id="imageCarousel" class="carousel slide" data-bs-ride="carousel">
diff --git a/developer_apps.php b/developer_apps.php
new file mode 100644
index 0000000..a280c8f
--- /dev/null
+++ b/developer_apps.php
@@ -0,0 +1,117 @@
+<?php
+session_start();
+require_once 'config.php';
+
+// 验证开发者ID参数
+if (!isset($_GET['id']) || !is_numeric($_GET['id'])) {
+    header('Location: index.php');
+    exit;
+}
+
+$developerId = intval($_GET['id']);
+
+// 获取开发者信息
+$sqlDeveloper = "SELECT username FROM developers WHERE id = $developerId";
+$resultDeveloper = $conn->query($sqlDeveloper);
+$developer = $resultDeveloper->fetch_assoc();
+
+// 确定页面标题和开发者名称
+if ($developer) {
+    $developerName = htmlspecialchars($developer['username']);
+    $pageTitle = $developerName . ' 的应用 - ' . APP_STORE_NAME;
+} else {
+    // 如果开发者ID为0或不存在，视为管理员
+    $developerName = '管理员';
+    $pageTitle = '管理员的应用 - ' . APP_STORE_NAME;
+}
+
+// 获取该开发者的所有应用
+$sqlApps = "SELECT a.*, (SELECT AVG(rating) FROM reviews WHERE app_id = a.id) as avg_rating
+           FROM apps a
+           WHERE a.developer_id = $developerId";
+$resultApps = $conn->query($sqlApps);
+?>
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title><?php echo $pageTitle; ?></title>
+    <!-- Bootstrap CSS -->
+    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <!-- Font Awesome -->
+    <link rel="stylesheet" href="css/all.min.css">
+    <!-- 自定义CSS -->
+    <link rel="stylesheet" href="styles.css">
+    <!-- Fluent Design 模糊效果 -->
+    <style>
+        .blur-bg {
+            backdrop-filter: blur(10px);
+            background-color: rgba(255, 255, 255, 0.5);
+        }
+    </style>
+</head>
+<body>
+    <!-- 导航栏 -->
+    <nav class="navbar navbar-expand-lg navbar-light blur-bg">
+        <div class="container">
+            <a class="navbar-brand" href="index.php"><?php echo APP_STORE_NAME; ?></a>
+            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
+                <span class="navbar-toggler-icon"></span>
+            </button>
+            <div class="collapse navbar-collapse" id="navbarNav">
+                <ul class="navbar-nav">
+                    <li class="nav-item">
+                        <a class="nav-link" href="index.php">首页</a>
+                    </li>
+                    <?php if (isset($_SESSION['admin'])): ?>
+                        <li class="nav-item">
+                            <a class="nav-link" href="/admin/">管理</a>
+                        </li>
+                    <?php endif; ?>
+                </ul>
+            </div>
+        </div>
+    </nav>
+
+    <div class="container mt-4">
+        <h1><?php echo $developerName; ?> 的应用</h1>
+        <hr>
+
+        <?php if ($resultApps && $resultApps->num_rows > 0): ?>
+            <div class="row">
+                <?php while ($app = $resultApps->fetch_assoc()): ?>
+                    <div class="col-md-4 mb-4">
+                        <div class="card h-100 blur-bg">
+                            <?php
+                            // 获取应用的第一张图片
+                            $sqlImage = "SELECT image_path FROM app_images WHERE app_id = ". $app['id'] ." LIMIT 1";
+                            $resultImage = $conn->query($sqlImage);
+                            $image = $resultImage ? $resultImage->fetch_assoc() : null;
+                            $imagePath = $image ? $image['image_path'] : 'default-app.png';
+                            ?>
+                            <img src="<?php echo $imagePath; ?>" class="card-img-top" alt="<?php echo htmlspecialchars($app['name']); ?>">
+                            <div class="card-body">
+                                <h5 class="card-title"><?php echo htmlspecialchars($app['name']); ?></h5>
+                                <p class="card-text"><?php echo htmlspecialchars(substr($app['description'], 0, 100)); ?>...</p>
+                                <p class="card-text">
+                                    <small class="text-muted">
+                                        评分: <?php echo round($app['avg_rating'] ?? 0, 1); ?>/5
+                                    </small>
+                                </p>
+                                <a href="app.php?id=<?php echo $app['id']; ?>" class="btn btn-primary">查看详情</a>
+                            </div>
+                        </div>
+                    </div>
+                <?php endwhile; ?>
+            </div>
+        <?php else: ?>
+            <div class="alert alert-info" role="alert">
+                <?php echo $developerName; ?> 暂无上传应用
+            </div>
+        <?php endif; ?>
+    </div>
+
+
+</body>
+</html>
\ No newline at end of file
