很强大的java动态调用程序,这里仅是个示例,代码很少.但基于此,可以实现像润乾报表里面的公式解析之类的功能.-The demo is a powerful dynamic calling program, here is just one example, the code rarely. But for this, you can implement features such as Run-dry statements inside the Gongshijiexi Zhilei of G