pascal.txt

编译器,词法分析和语法分析,里面利用到了哈希表来加快搜索字符表速度.

Program abc;
  Integer x,y,z;
  Real a,b;
   Begin
  x:=1;y:=2;z:=3;
  Call ab(x,y,z);
  z:=4+z+(1+2+6+x)*3*y*5+7;
  If ~ 3<=x & y<>4 then z:=0;
  y:=219;  z:=37;  x:=y*z
End.#