LL（1）分析 写的语法分析程序，但是不能实现消除左递归，提取公因子-LL (1) analysis of written grammar analysis program, but can not eliminate the left recursion, extracting common factor

编译原理消除间接左递归。将结果存于文件中-Compiler to eliminate the principle of indirect left recursion. The results stored in the document

用于消除左递归的一个用C++语言实现的小程序。里面包含有详细的报告和源代码。-Used to eliminate the left recursion in a C++ language implementation with a small program. Which contains detailed reports and source code.

LL(1)文法的实现，主要包括文法的读取、消除左递归、求First集、Follow集、Select集，生成预测分析表，对给定句子分析是否符合文法。-LL (1) grammar implementations, read mainly include grammar to eliminate left recursion, seeking First set, Follow Set Select set generate predictive analysis table, analysis m