词法分析器 可以识别c++的源码,自动生成词法分析表, 在分析结束后会指出源代码中可能的错误 待分析的源代码要以 *源代码.txt的格式保存-Lexical analyzer can identify c++ The source, automatically generate lexical analysis table, after the end of the analysis will be pointed out that the source code may be an