题库 高中信息
题干
运行如下Visual Basic程序，单击命令按钮Command1，出现如图所示的出错信息。发生“类型不匹配”错误时所执行的语句是（ ）
Private Sub Command1_Click()
Dim a As String, b As String, c As Integer
a = "Good" '①
b = "bye" '②
c =__________1__________'③
Text1.Text =" a" + b + c '④
End Sub
Private Sub Command1_Click()
Dim a As String, b As String, c As Integer
a = "Good" '①
b = "bye" '②
c =__________1__________'③
Text1.Text =" a" + b + c '④
End Sub
| A．① | B．② | C．③ | D．④ |
答案(点此获取答案解析）
写成Visual Basic表达式，正确的是( )。