调用ijl库解码jpg文件，读取ucdos中点阵字库中文字，将其叠加在图片上，再次调用ijl库编码生成jpg文件-Call ijl library decoding JPG document, read the text in the word ucdos dot matrix, the superposition in pictures, called again ijl library code generation JPG file

GB18030汉字16x16点阵字库，取模方式：纵向取模，字节逆序-GB18030 Chinese character 16x16 dot matrix font, modulo mode: longitudinal modulus, byte reverse

用两个字符形成点阵大字的软件TxtLog根据点阵字库,用两个字符形成(With two characters to form dot matrix characters software TxtLog according to bitmap fonts, use two characters form)