（加试题）由英文字母构成的字符串数据压缩方法描述如下：
1）原始数据中，字母相邻无重复，压缩数据用该字母表示
2）原始数据中，字母相邻重复，压缩数据用1个整数和该字母表示

原始数据	压缩数据
BBFFF	2B3F
ABBCCCCCD	A2B5CD

 
小明编写了一个解压缩VB程序，功能如下：程序运行时，在文本框Text1中输入压缩数据，点击按钮Command1，在文本框Text2中显示解压缩后的数据。程序运行如图所示

（1）如果压缩数据为”AB168D9A”，解压缩后数据的个数是___________ 。 
（2）实现上述功能的VB程序如下。请在划线处填入合适代码。
Function zm(c As String) As Boolean  
If c >= "0" And c <= "9" Then zm = False  Else  zm = True
End Function
Private Sub Command1_Click()
Dim s1 As String, s2 As String, fd As String, k As Integer
Dim count As Integer, i As Integer, j As Integer, length As Integer
s1 = Text1.Text: s2 = "": length = Len(s1)
i = 1
Do While i <= length
fd = Mid(s1, i, 1)
If zm(fd) Then
s2 = s2 + fd
i = i + 1
Else
j = i + 1
fd = Mid(s1, j, 1)
Do While Not zm(fd)
j = j + 1
fd = Mid(s1, j, 1)
Loop
count = ①______     
fd = Mid(s1, j, 1)
For k = 1 To count
s2 = s2 + fd
Next k
②_______  
End If
Loop
Text2.Text = s2
End Sub