设窗体上有一个名为Txtl的文本框和一个名为Commandl的命令按钮,并有以下事件过程: Private Sub Commandl一Click() x!==Val(Textl.Text) Select Case x Casc Is=20 Print“输入错误” Case Is<0 Print 20 x Case ls<10 Print 20 Case Is=20 Print x+10 End Select End Sub 程序运行时,如果存文本框中输入一5,则单击命令按钮后的输出结果是
A.
5
B.
20
C.
25
D.
输入错误
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