Introduction - If you have any usage issues, please Google them yourself
Simple lexical analyzer 1. A process of reading words from the input source program, identify the meaning of each word independent, that is basically reserved words, identifiers, constants, operators, delimiters five categories. 2. Followed by the output of each internal code word and the word symbol itself value. 3. Encountered an error " can not recognize the word" , then skip the error part of the continued display