Question

vb编写选择题时发生莫名其妙的错误 请求各位高手帮忙

我是这样：三个A、B、C按钮，一个空白标签，点击A、B、C分别会使标签上显示A、B、C，共有五道题
Private Sub Command1_Click()
label1.Caption = "A"
End Sub
我按同样的方法编写，为什么到最后一道题点A、B、C就会发生错误“实时错误424，要求对象”，可是我写了对象啊？怎么回事啊？以下是全部代码：
Private Sub Command1_Click()
labela.Caption = "A"
End Sub

Private Sub Command10_Click()
Labelg.Caption = "A"
End Sub

Private Sub Command11_Click()
Labelg.Caption = "B"
End Sub

Private Sub Command12_Click()
Labelg.Caption = "C"
End Sub
Private Sub Command13_Click()
Labeldi.Caption = "A"
End Sub

Private Sub Command14_Click()
Labeldi.Caption = "B"
End Sub

Private Sub Command15_Click()
Labeldi.Caption = "C"
End Sub

Private Sub Command2_Click()
labela.Caption = "B"
End Sub

Private Sub Command3_Click()
labela.Caption = "C"
End Sub

Private Sub Command4_Click()
Labelc.Caption = "A"
End Sub

Private Sub Command5_Click()
Labelc.Caption = "B"
End Sub

Private Sub Command6_Click()
Labelc.Caption = "C"
End Sub

Private Sub Command7_Click()
Labele.Caption = "A"
End Sub

Private Sub Command8_Click()
Labele.Caption = "B"
End Sub

Private Sub Command9_Click()
Labele.Caption = "C"
End Sub
各位高手帮帮忙！

Answer 1

你确定有个label叫Labeldi?而不是Labeld?

Private Sub Command13_Click()
Labeldi.Caption = "A"
End Sub

Private Sub Command14_Click()
Labeldi.Caption = "B"
End Sub

Private Sub Command15_Click()
Labeldi.Caption = "C"
End Sub
你看看这里都写的di

Answer 2

你重新建个项目，拉进去三个A、B、C按钮，一个空白标签；
输入代码的时候，把原来的代码全部清空，输入下面的代码运行就能看到效果了。

然后在自己参悟下，相信你会弄明白的。

Option Explicit

Private Sub Command1_Click()
Labeld1.Caption = "A"
End Sub

Private Sub Command2_Click()
Labeld1.Caption = "B"
End Sub

Private Sub Command3_Click()
Labeld1.Caption = "C"
End Sub

Answer 3

变量名错了，你只有一个标签，也就是label1,而后面你却用了labela,labelc,labelc.....系统找不到相应对象的，把全部labelX都改成label1就好了。例如：Private Sub Command1_Click()
labela.Caption = "A"
End Sub
这一段，把labela.caption="A"改成label1.caption="A"。下面的全改完就好了。
不知道有没有理解错误，希望对你有帮助~