金融行业普通密码小键盘源代码，基于单片机51系列，带语音及提示，命令集包含现有国内几大厂商的所有集合（实达，南天，湘计）-The financial sector general password small keyboard source code, based on single-chip 51 series, with voice and suggested that the existing command set contains several major domestic manufacturers of all collections (Start, South days, Xiang dollars)