说明：  hex转bin的程序, 支持大于64K的hex, 网上下载的hex2bin不支持64k. 不包含工程文件, 在c++ builder中简单包装即可生成一个hex2bin的小程序
(hex to bin procedures, to support more than 64K of the hex, downloaded hex2bin does not support 64k. does not contain a project file, in c++ builder in simple packaging hex2bin can generate a small program)