diff --git a/index.php b/index.php
index fa4b312..5da0ae2 100644
--- a/index.php
+++ b/index.php
@@ -16,7 +16,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
 
   // 兼容跨平台路径
   $md5 = md5_file($file_tmp);
-  $upload_dir = __DIR__ . $base_dir . substr($md5,0,1).'/'.substr($md5,1,1);
+  $upload_dir = getcwd() . $base_dir . substr($md5,0,1).'/'.substr($md5,1,1);
   // 检查并创建目录
   if (!is_dir($upload_dir)) {
     if (!mkdir($upload_dir, 0777, true) && !is_dir($upload_dir)) {
@@ -25,13 +25,14 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['file'])) {
     }
     // 开始创建index.html
     file_put_contents($upload_dir .'/index.html', 'no access');
-    file_put_contents( __DIR__ . $base_dir .  substr($md5,0,1). '/index.html', 'no access');
+    file_put_contents( getcwd() . $base_dir .  substr($md5,0,1). '/index.html', 'no access');
   }
 
   // 根据文件内容生成MD5文件名，这样可以排除重复上传
   $FileName =  md5_file($file_tmp). '.' . strtolower(pathinfo($name, PATHINFO_EXTENSION));
   // 这里判断下重复文件不移动文件
-  if (file_exists($target_file) || move_uploaded_file($file_tmp, $upload_dir . '/' .$FileName)) {
+  $target_file=$upload_dir . '/' .$FileName;
+  if (file_exists($target_file) || move_uploaded_file($file_tmp, $target_file)) {
     echo '{"upload_url":"http://'.$_SERVER['HTTP_HOST'] . $base_dir . substr($md5,0,1). '/' .substr($md5,1,1) .'/'. $FileName.'"}';
   } else {
     echo '{"error":"写入失败，无法保存文件"}';