中文说明：比较小的程序，MATLAB有符号数进制转换，十进制转八位16进制数，压缩包中包含txt数据，可以直接验证代码的可行性，代码亲测有效，并且简单易懂
English Description：
Relatively small procedures, matlab signed decimal conversion, decimal to eight hexadecimal number, compression package contains TXT data, can directly verify the feasibility of the code, code pro test effective, and easy to understand