charconvert

代码说明：

  模仿南极星写的一个编码转换工具，日文，中文，uf8之间的转换。当初为了写这个工具调查了很多资料。难得的，很少人写这方面的东西。花了不少时间。(NJStar imitate write a code conversion tool, Japanese, Chinese, uf8 conversion between. We had to write this tool to investigate a lot of information. Rare, very few people write things in this regard. Spent a lot of time.)