打开..旋转..上下翻页..浏览图片..简易的图片浏览器-Open the flip up and down .. rotation .. .. .. simple picture browser picture browser

实现逻辑门电路的绘制以及运算。并且实现了加法器、减法器、乘法器、比较器等运算-Implementation of logic gate drawing and operation. And implement the adder, subtracter, multiplier, comparator and other operations