Introduction - If you have any usage issues, please Google them yourself
Create a new application, and add two Label controls, three Edit controls, four Button button. Two of them used to edit input box enter an integer, an input box for Edit output Label label control used to display the current operation done (for example: When you click that button to do adder addition operations, the labels show label " + " sign.) four Button button respectively add, subtract, multiply, with the exception of computing. Programming, enter the two integers, the order of the implementation of both the number of add, subtract, multiply, with the exception of the calculation results and output.