编写识别表达式拓广文法的合法句子的SLR(1)分析程序，对输入的任意符号串，给出分析过程及分析结果。分析过程要求输出步骤、状态栈、符号栈、输入串和语法动作。如果该符号串不是表达式文法的合法句子，要给出尽量详细的错误提示。-Write a recognition of the legitimate expression of broadening the sentence grammar SLR (1) analysis program , for any input string of symbols , given the results of the analysis process and analysis . Analysis requires that the output step , the state stack , stack symbols , and syntax input string action . If the string is not an expression grammar symbol lawful sentence , try to give a detailed error message.