test1.txt

类c语言编译器

begin
  while x1<=3 
  do
    if x2>=s or x3==x4 and x5<=4 and not x6<>78 
	then
	if x7==4 
		then 
		x8=x9+y1*y2 
		else y3=y4*(y5+y6)
	else y7=34;
x=4;
if z1==z2 then z3=3 else z4=4
end