diff --git a/public/index.php b/public/index.php
index c3ee3e2..32b4fbf 100644
--- a/public/index.php
+++ b/public/index.php
@@ -263,9 +263,7 @@ function api_upload()
 
     $uuid = uniqid();
 
-    $db = new SQLite3(DATA_PATH . 'data.db');
-    $db->exec("INSERT INTO files (uuid, src) VALUES ('{$uuid}', '{$src}')");
-    $db->close();
+   exec_db("INSERT INTO files (uuid, src) VALUES ('{$uuid}', '{$src}')");
 
     echo_json([
         "code" => empty($src) ? 1 : 0,
@@ -290,12 +288,7 @@ function init()
     define("PUBLIC_PATH", BASE_PATH . "/./public/");
     define("DATA_PATH", BASE_PATH . "/./data/");
 
-    
-    $db = new SQLite3(DATA_PATH . 'data.db');
-    // 创建表
-    $db->exec('CREATE TABLE IF NOT EXISTS files (id INTEGER PRIMARY KEY, uuid TEXT, src TEXT)');
-    $db->close();
-    
+    inti_db();
     
     empty($_SERVER['REQUEST_URI']) || $_SERVER['REQUEST_URI'] == "/" && $_SERVER['REQUEST_URI'] = "/index";
 
@@ -304,12 +297,19 @@ function init()
     if (str_starts_with($_SERVER['REQUEST_URI'], "/file")) {
         $id = explode("/", $_SERVER['REQUEST_URI'])[2] ?? "";
 
-        $results = $db->query("SELECT * FROM files WHERE uuid='{$id}' LIMIT 1");
-
+        $results = query_db("SELECT * FROM files WHERE uuid='{$id}' LIMIT 1");
         $row = $results->fetchArray();
-        $db->close();
 
-        var_dump($row['src']);
+        if(empty($row['stc'])){
+            echo_json([
+                "code" => 1,
+                "msg" => "图片不存在",
+                "data" => []
+            ]);
+        }
+
+        $imgUrl = "https://telegra.ph{$row['src']}";
+        var_dump($imgUrl);
         die;
     }
 }
@@ -333,5 +333,25 @@ function show_page()
     }
 }
 
+function exec_db($sql){
+    $db = new SQLite3(DATA_PATH . 'data.db');
+    // 创建表
+    $db->exec($sql);
+    $db->close();
+}
+
+function query_db($sql){
+    $db = new SQLite3(DATA_PATH . 'data.db');
+    // 创建表
+    $results = $db->query($sql);
+    $db->close();
+
+    return $results;
+}
+
+function inti_db(){
+    exec_db('CREATE TABLE IF NOT EXISTS files (id INTEGER PRIMARY KEY, uuid TEXT, src TEXT)');
+}
+
 // common func end
 ?>
\ No newline at end of file