已知课本（华中科技大学版，编译原理第二版，何炎祥主编）77页文法G27，知道其分析表P80，要求给一输入串，判断是否是文法的一个句子 程序如下（JAVA语言）-known books (Huazhong University of Science and Technology edition, the second edition of compiler theory, Yan - Xiang editor) 77 grammar G27, know their analysis Tabl