becomes.txt

编译原理课程设计,清华大学版教材的pl0编译器的源码.

var a,b;
begin
 read(a);
 read(b);
 b+=a;
 write(b);
 b-=a;
 write(b);
 b*=a;
 write(b);
 b/=a;
 write(b)
end.