编译大作业，实现了文法中的所有内容，具体文法在附件中可以看到-Compile large operations, to achieve a grammar all content, specific grammar can be seen in the Annex

计算器 ，基于labview的能实现和电脑自带附件差多了算法。-abview-based calculators and computers to achieve much worse comes algorithm accessories.