1. 找到文件 e/class/functions.php，查找 function DelNewsFile。
  2. 替换函数内容： 
    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);
    }
}