1某数组有20个元素，其值为随机产生的两位整数。现要求将前10个元素与后10个元素对换。即第1个元素与第20个元素互换，第2个数与第19个元素互换，第10个元素与第11个元素互换。在窗体上输出数组原来各元素的值与对换后各元素的值。Option ExplicitDim a(1 To 20) As Integer, i As Integer, j As Integer, t As IntegerPrivate Sub Form_Load()me.ShowPrint 原始数组是：RandomizeFor i = 1 To 20 a(i) = Int(Rnd * 90+10) 10 to 99 Print a(i); If i Mod 10 = 0 Then PrintNext iPrintPrint 现在数组是：For i = 1 To 10 j = 21 - i t = a(i): a(i) = a(j): a(j) = tNext i For i = 1 To 20 Print a(
