以下内容仅为个人学习笔记,非正规教程,难免有疏漏之处,请指出!
目标要分析词法的对象是一种叫TINY+的计算机语言。下面是一个Example,
char str; int x, fact; str:= 'sample program in TINY+ language- computes factorial'; read x; if x>0 and x<100 then {don’t compute if x<=0} fact:=1; while x>0 do fact:=fact*x; x:=x-1 end; write fact end