说明：  自己上虚拟仪器课程编写的计算器程序,实现简单的加减,剩除.开发环境中没找到相应的填写.环境应该是:labview
(their courses on virtual instruments prepared by the calculator program, simple addition and subtraction, the residual. Development environment can not find the corresponding fill. The environment should be : LabVIEW)