Use pescms can not update your picture, just say the results of it. .
Modify /Expand/UEupload/UEController.php file
case 'uploadimage':
//D:\code\projects\Public\Theme\assets\ueditor\dialogs\attachment\images 图片地址
break;
Replace
case 'uploadimage':
//D:\code\projects\Public\Theme\assets\ueditor\dialogs\attachment\images 图片地址
//break;
Modify /Expand/UEupload/Uploader.php file
$this->stateMap['ERROR_TYPE_NOT_ALLOWED'] = iconv('unicode', 'utf-8', $this->stateMap['ERROR_TYPE_NOT_ALLOWED']);
Commented out
//$this->stateMap['ERROR_TYPE_NOT_ALLOWED'] = iconv('unicode', 'utf-8', $this->stateMap['ERROR_TYPE_NOT_ALLOWED']);