1. EF F 3 1 Visual Basic i H 2 Visual Basic 2. 3 Visual Basic Visual Basic Vi ic H 9 VisualBasiic 7 3 8 10 11 8 3. Visual Basic H RN 4 E UU 6 4. 12 7 8 1 VisualBasic 6 4 Visual Basic Visual Basic Visual Basic Visual Basic a Visual Basic 5. O1 MI 2 J i H