String formula display
no vote
Application background Learning C + + when that object orientation is cool, what want to object oriented, when students at the demand, to achieve the text formula displays a string as often see the appearance of the program, do the such a program, support addition, subtraction, multiplication and division, involution and evolution. Key Technology Using object-oriented programming, it is a kind of experience of object oriented thinking. To realize the analysis of the formula string, the equivalent elements in the formula, and to analyze the elements should be in any position, and the formula is TextOut.