vb.net 关于语句顺序的问题

VB.NET code

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load        Dim Ports As String() = SerialPort.GetPortNames()        Dim Port As String        For Each Port In Ports            PortNameBox.Items.Add(Port)        Next Port        SendBox.Text = "123"        Label.Text = PortUsing.IsOpen        StatusLabel.Text = "串口未连接"        StatusLabel.ForeColor = Color.Red        PortNameBox.SelectedIndex = 0        AddHandler PortUsing.DataReceived, AddressOf Sp_DataReceived        Port_Using()    End Sub

为什么有的语句在前那么后面的语句就不执行了？

[解决办法]
当处理前面的语句时出错了，程序就会在出错的地方就马上终止运行了，并抛出异常错误信息，所以后面的语句是执行不了的！

你应该在代码里加上 Try...Catch...Finally 结构来处理异常！