递归下降分析器的设计 首先将文法改写成EBNF形式，根据递归下降分析法基本思想编写程序。 -The design of recursive descent parser rewrite first EBNF grammar forms, according to the basic idea recursive descent analysis programming.

利用c语言编制递归下降分析程序,并对简单语言进行语法分析-C language using recursive descent parser, and a simple language syntax analysis