1. (2016高三上·杭州期中) 有如下 V B 程序段：

Dim s(1 To 6) As String

Text1.Text = ""

For i = 1 To 5

   For j = i + 1 To 6

       If s(i) + s(j) < s(j) + s(i) Then

        t = s(j): s(j) = s(i): s(i) = t

       End If

    Next j

Next i

For i = 1 To 6

  Text1.Text = Text1.Text + s(i)

Next i

如果程序运行，一开始当数组元素s(1)到s(6)的值依次为“4”、“343”、“312”、“12”、“246”、“121”，运行该段代码后，文本框Text1中显示的内容为（   ）