运用51单片控制锁存器译码器等，完成一个简单的计算器系统-Control the use of 51 single latch decoder and so on, to complete a simple calculator system

一个带浮点运算的单片机计算器，基于c51的简单运算。-It is based on 51 single-chip multi-function calculator design, accompanied by procedures and schematics