执行下面的程序,在窗体上显示的输出结果的第二行是_____,第三行是_____。 Option Explicit Dim a As Integer, b As Integer Private Sub Command1_Click( ) Dim c As Integer a = 1: b = 3: c = 5 Print fun(c) print a;b;c Print fun(c) End Sub Private Function fun(x As Integer)As Single fun = a + b + x/2 a = a + b b = a + x x = b + a End Function