下列程序段的执行结果为 ______。
A=0:B=0
For I = -1 To -2 Step -1
For J = 1 To 2
B=B+1
Next J
A=A+1
Next I
Print A; B

A．2 4
B．-2
C．4
D．2

下列程序段的执行结果为 ______。A=0:B=0For I = -1 To -2 Step -1 For J = 1 To 2 B=B+1 Next J A=A+1Next IPrint A; B