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function DelNewsFile($filename, $newspath, $classid, $newstext, $groupid = 0) {     global $class_r, $addgethtmlpath, $mob_r;     include_once ECMS_PATH . "e/dongpo/mob/config.php";          // 文件类型     if ($groupid) {         $filetype = ".php";     } else {         $filetype = $class_r[$classid]['filetype'];     }          // 是否有日期目录     if (empty($newspath)) {         $mynewspath = "";     } else {         $mynewspath = $newspath . "/";     }          $iclasspath = ReturnSaveInfoPath($classid, $id);          // 删除手机端文件     $mob_filepath = $mob_r['path'] . $mynewspath . $filename . $filetype;     if (file_exists($mob_filepath)) {         unlink($mob_filepath);     } }