【加试题】有如下VB程序段：
Dim a(5) As Integer
Dim i As Integer, j As Integer, t As Integer
a(1) = 52: a(2) = 15: a(3) = 37: a(4) = 22: a(5) = 35
i = 1
Do While i < 5
t = i: j = i + 1
Do While j <= 5
If a(j) > a(t) Then t = j
j = j + 1
Loop
x = a(t): a(t) = a(i): a(i) = x
i = i + 1
Loop
Text1.Text = Str(a(2))
运行该段代码后，文本框Text1中显示的内容为（ ）
