调试excel

@@ -421,7 +421,11 @@ class AdminCommonController extends AdminBaseController
         }
         $file_url = ROOT_PATH . '/public/upload/export/'.$file_name;
         $objWrite->save($file_url);
-        chmod($file_url, 0777);
+
+        $sys = $this->getOperateSys();
+        if($sys == 'Linux'){
+            chmod($file_url, 0777);//适用于linux
+        }
         //相对路径
         $url = 'upload/export/'.$file_name;
         return $url;
@@ -593,7 +597,6 @@ class AdminCommonController extends AdminBaseController
 //        }
 
         //如果不要下载，下面这段删掉即可，如需返回压缩包下载链接，只需 return $zipName;
-
         if($sys == 'Windows'){
             //中文导出需要转码
             $zipName=iconv('UTF-8','GB2312',$zipName);
@@ -823,7 +826,7 @@ class AdminCommonController extends AdminBaseController
 
     //判断当前操作系统
     public function getOperateSys(){
-        $os_name = PHP_OS;
+        $os_name = php_uname('s');
         //判断
         if(strpos($os_name,"Linux")!==false){
             $os_str="Linux";