构造LR(1)分析程序，利用它进行语法分析，判断给出的符号串是否为该文法识别的句子，了解LR（K）分析方法是严格的从左向右扫描，和自底向上的语法分析方法。-Construct LR (1) analytical procedures, and use it to parse sentences of whether the judgment given string of symbols for grammar recognition LR (K) analysis method is stri