此次课程设计我的设计题目是：判别后缀表达式。其具体要解决的问题是：

（1）假设表达式由单字母变量和双目四则运算符构成；

（2）从键盘输入任意一个非空的表达式；

（3）利用栈，判别输入的表达式是否是一个正确的后缀表达式；

（4）把正确的后缀表达式转换为前缀表达式；

（5）测试用例自己设计。

-current curriculum design I design entitled : distinguishing suffix expression. To solve their specific problems are : (a) It is assumed that the expression of single-letter variable binocular and four Operators composition; (2) from the keyboard input an arbitrary non-empty expression; (3) using stack, Discriminant importation of whether the expression is a correct expression of the suffix; (4) the correct conversion of expression suffix prefix expression; (5) The test case of its own design.