fix garbled characters appear in the Chinese file name;

[tianguanghui]

fix garbled characters appear in the Chinese file name; issue #86、#174 and #238

[jlcool]

A year has passed

[brendan-duncan]

Sorry I never replied to this. I didn't take it before because I need to be very careful with adding new dependencies. The library is used in places that is sensitive to that. I appreciate and understand the need to decode and encode extended languages. I would like to find a reasonable solution to the problem.