编译原理课程设计，采用算符优先分析算法，对G[S]所定义的赋值语句进行语法分析，并在语法分析过程中将所输入的扶植语句翻译为四元式。-Compilation Principle curriculum design, the use of operator priority analysis algorithms, the G [S] defined by assignment statements for grammar analysis and parsing process entered foster statements translated into quaternion type.