For i=1 to 3
For j=1 to 5-i
If a(j)> a(j+1) Then
t=a(j) : a(j)=a(j+1) : a(j+1)=t
End If
Next j
Text1. Text = Text1. Text+Str(a(i))
Next i
数组元素a(1)到a(5)的值依次为“3,9,6,8,4”。若该程序段执行后,文本框Text1显示的内容是( )