自己写的一个android新手小项目计算器源码，实现简单的加减乘除功能，界面比较好看-Android novice to write a small project calculator source code, simple addition and subtraction, multiplication and division functions, the interface looks better

基于VHDL语言的数码管显示程序，绝对是原创非抄袭-Digital tube display program based on VHDL is absolutely original non plagiarized