基于stc89c52多功能电子时钟+计算器+秒表-Based on the stc89c52 multi-function electronic clock+ calculator+ stopwatch

前无古人，后无来者的单片机计算器，功能强大，你想要的功能绝对都有，我就不多说了，需要的话下载，不会让你失望的-Unprecedented, and no latecomers microcontroller calculator, powerful, absolutely has the features you want, I will not say more, you need to download, will not let you down

虚拟仪器，在labview环境下，虚拟一个多功能计算器。-Virtual instrument, in the LabVIEW environment, a virtual multi-function calculator.