window ce的一个简单计算器实现。附带七段数字码的实现-window ce to achieve a simple calculator

基于wince6的计算器，可以实现简单的加减乘除和开方或者平方运算-Based wince6 calculator, you can achieve a simple addition, subtraction, multiplication, and division and square root or squaring

计算器,能实现简单四则运算和三角函数运算，显示函数图形-Calculatorthat can perform simplearithmeticandtrigonometric functions,graphicaldisplayfunction