A.Interval=0或Enabled=False B.Interval=0或Visible=False C.Visible=False=False或Enabled=False D.Interval=0且Enabled=False
A.Len函數(shù) B.Mid函數(shù) C.Left函數(shù) D.Right函數(shù)
A.Form2.Load B.Form2.Visible=False C.Form2.Show D.Form2.Visible=True