在窗体上画1个命令按钮和1个文本框,其名称分别为Command1和Text1,再编写如下程序:Dim ssAs String Private Sub Text1_KeyPress(KeyAsciiAs Integer)IfChr(KeyAscii) <>"" Then ss=ss+Chr(KeyAscii) End Sub Private SubCommand1_Click() Dim mAs String,iAs Integer For i=Len(ss) To 1 Step-1 m=m+Mid(ss,i,1)Next Text1.Text=UCase(m) End Sub 运行程序后,在文本框中输入“Number100”,并单击命令按钮,则文本框中显示的是A、NUMBER 100 B、REBMUN C、REBMUN 100 D、001 REBMUN