i:=m-1 -n T1:=4n v:=aT B if i>=j goto B6 B4 i:=i+1 I2:=4*i x: =a T Bs x:=aTul T3: -aT 2 T:4 12 if T3<v goto B2 13 n a 14 -a a T1a:=4 x√ n a 15 goto B2 if Ts>v goto B 口中间代码程序段❑中间代码程序段 i:=m-1 j:=n T1 :=4*n v:=a[T1 ] B1 i:=i+1 T2 :=4*i T3 :=a[T2 ] if T3<v goto B2 B2 j:=j-1 T4 :=4*j T5 :=a[T4 ] if T5>v goto B3 B3 if i>=j goto B6 B4 T6 :=4*i x:=a [T6 ] T7 :=4*i T8 :=4*j T9 :=a [T8 ] a [T7 ]=T9 T10:= 4*j a [T10]=x goto B2 B5 T11:=4*i x:=a [T11] T12:=4*i T13:=4*n T14:=a [T13] a [T12]=T14 T15:= 4*n a [T15]=x B6