【摘要】 利用台湾友晶科技公司的DE10-Lite开发板上的资源，设计简易计算器，来实现4位10进制的加法、减法、乘法运算。利用开发板上十个拨动开关，两个按键开关，六个静态数码管，50 MHz信号，通过分层设计，顶层底层相结合、元件调用、实现简易计算的分时显示，有利于学生自主设计能力培养。更多还原

【Abstract】 Using the resources on the DE10＿ Lite development board of Taiwan Youjing technology company, a simple calculator is designed to realize 4-bit decimal addition, subtraction and multiplication. Using ten toggle switches, two key switches, six static nixie tubes and 50 MHz signals on the development board, the time-sharing display of simple calculation is realized through layered design, combination of top and bottom layers and component call. It is beneficial to the cultivation of students’ independent design ability.更多还原