Introduction - If you have any usage issues, please Google them yourself
By design, develop and debug a specific lexical analysis procedures, to deepen understanding of the principles of lexical analysis, and mastery of the programming language source code will be scanned in the decomposition process of lexical analysis of various types of words. Experimental content and basic requirements: the design of a simple programming language (language has+,- arithmetic, assignment statement has input statements, output statements, compound statements) requirements: 1 input source, and finally to " #" as. end marker 2 each word processing, calculating the value and type of each word 3 outputs each word name, value and type of the word.