是关于算术表达式的翻译程序，有词法分析，语法分析，语义分析和三地址码生成-it is a program which is to translate the compute expression.it contains accidence analysis,gramar analysis ,lexeme analysis and three-addr code grenerate.

是关于算术表达式的翻译程序，有词法分析，语法分析，语义分析和三地址码生成-it is a program which is to translate the compute expression.it contains accidence analysis,gramar analysis ,lexeme analysis and three-addr code grenerate.

有关数学形态学的基础知识。适用于初学者。-Basic knowledge of mathematical morphology. Suitable for beginners.