此计算器是我们期末的实习作业，由两人合力完成，附有详细的源代码说明，界面和windows的几乎一样，功能强大，支持包括％，！（，）等高级运算符，-this calculator is the end of the internship work, completed by two together, accompanied by a detailed statement of the source code, the interface and windows nearly the same a