set @num=1
while @num<=100
begin
set @flag=1 --flag=1 素數,flag=0 非素數
set @i=2
while @i<@num
if @num%@i=0
set @flag=0
break
end
set @i=@i+1
if @flag=1 and @num >2 --去掉1,2
print @num
set @num=@num+1