test.txt

来自「本程序实现编译原理中」· 文本 代码 · 共 16 行

const  a=10;
var    b,c;
procedure p;
  begin
     c:=b+a;
  end;
begin
  read(b);
  while b#0 do
    begin
	    call p;    
		write(2*c);    
		read(b);  
	end
end.