Introduction - If you have any usage issues, please Google them yourself
1, and the evaluation of arithmetic operations, the program through keyboard input an expression, obtained by computing the value of the expression and display the full expression of the value of output 2, program implementation, the use of the stack data structure 3, the expression as a string input 4 expression, including the basic operators are add, subtract, multiply and divide (respectively+,-,*,, said), the expression including the handling of parentheses, Parentheses can be nested expressions can be integer numbers, can also be fractional