gbk的偏移算法，带字库。 带汉字点阵的偏移很多，全角字符的都没有找到，这个我自己加了测试通过 16*16的点阵字库-the gbk the offset, with a character. Offset with a lot of character dot matrix, full-width characters are not found myself plus a test by 16* 16 dot matrix font