使用myeclipse开发的有加、减、乘、除功能的B/S模式的计算器，使用struts框架技术，比较简单，适合于struts初学者用来了解struts的工作原理。-Myeclipse have developed the use of add, subtract, multiply, with the exception of functions of B/S mode calculator, use the struts framework of technology, relatively