工控课堂-开课了！！

-1" OR 2+145-145-1=0+0+0+1 --

1 waitfor delay '0:0:9' --

-1" OR 3+145-145-1=0+0+0+1 --

4jokwKMF'; waitfor delay '0:0:9' --

-1;select pg_sleep(6); --

if(now()=sysdate(),sleep(6),0)

-1);select pg_sleep(3); --

0'XOR(if(now()=sysdate(),sleep(6),0))XOR'Z

-1));select pg_sleep(3); --

0"XOR(if(now()=sysdate(),sleep(3),0))XOR"Z