下面程序运行时，若输入“Visual Basic Programming”，则在窗体上输出的是______。 Privae Sub Command1_Click() Dim count(25) As Integer,ch As String ch=UCase(InputBox("请输入字母字符串")) For k=1 To Len(ch) n=Asc(Mid(ch,k,1))-Asc("A") If n＞=0 Then count(n)=count(n)+1 End If Next k m=count(0) For k=1 To 25 If m＜count(k)Then m=count(k) End If Next k Print m End Sub