代码外提后 BI B2 (3)t1:=2 (6)t4:=a0-11 (7)t5:=2* (10)t8:=a0-11 (2ifi>10goo(16) B2 B3 (4)t2:=10*1(5)t3:=t2+t1 (8)t6:=10*1(9)t7:=t6+t5 1)t9:=8[t7](12)t10:=t9+1 (13)t4[t3]:t10(14)i=i+1 (15)goto(2 (16) B4(1)i:=1 (4)t2:=10*i (5)t3:=t2+t1 (8)t6:=10*i (9)t7:=t6+t5 (11)t9:=t8[t7] (12)t10:=t9+1 (13)t4[t3]:=t10 (14)i:=i+1 (15)goto (2) (16) …... (2)if i>10 goto (16) (3)t1:=2*j (6)t4:=a0-11 (7)t5:=2*j (10)t8:=a0-11 代码外提后 B1 B2’ B2 B3 B4