- the approch to achieve the multilanguage support depending on language string resource py file:
    - `zh.py` for Chinese
    - `en.py` for english
  - for convenience,these module was managed by the `multilanguage.py`module.
  - unfortunately,these features was test in `fviewer.py`,the main gui was still unable to work normally because the `windows.close` caused the program broken!
- improve the regex_filter performance by using `re.compile` instead `re.<function>`