关于 On Error Resume Next 和跳转，交流一下

yonex00345 2013-01-09 11:03:11

关于在c#中实现On Error Resume Next的效果，不知有什么好的方法，于是我尝试用Reflector反编译
VB.Net原代码：



On Error Resume Next

MsgBox("1")

MsgBox("2")

MsgBox("3")

反编译成C#：



 int VB$ResumeTarget;

    try

    {

        int VB$CurrentStatement;

    Label_0001:

        ProjectData.ClearProjectError();

        int VB$ActiveHandler = -2;

    Label_0009:

        VB$CurrentStatement = 2;

        Interaction.MsgBox("1", MsgBoxStyle.OkOnly, null);

    Label_0018:

        VB$CurrentStatement = 3;

        Interaction.MsgBox("2", MsgBoxStyle.OkOnly, null);

    Label_0027:

        VB$CurrentStatement = 4;

        Interaction.MsgBox("3", MsgBoxStyle.OkOnly, null);

        goto Label_00A4;

    Label_003B:

        VB$ResumeTarget = 0;

        switch ((VB$ResumeTarget + 1))

        {

            case 1:

                goto Label_0001;



            case 2:

                goto Label_0009;



            case 3:

                goto Label_0018;



            case 4:

                goto Label_0027;



            case 5:

                goto Label_00A4;



            default:

                goto Label_0099;

        }

    Label_005F:

        VB$ResumeTarget = VB$CurrentStatement;

        switch (((VB$ActiveHandler > -2) ? VB$ActiveHandler : 1))

        {

            case 0:

                goto Label_0099;



            case 1:

                goto Label_003B;

        }

    }

    catch (object obj1) when (?)

    {

        ProjectData.SetProjectError((Exception) obj1);

        goto Label_005F;

    }

Label_0099:

    throw ProjectData.CreateProjectError(-2146828237);

Label_00A4:

    if (VB$ResumeTarget != 0)

    {

        ProjectData.ClearProjectError();

    }