不是答案，只是一个有用的补充: 作为免费赠品，我刚刚发明了(嗯……记得不能用调整由Lolo发布的代码)RemoveLineOrBlock宏。享受吧!

Imports System
Imports EnvDTE
Imports EnvDTE80
Imports EnvDTE90
Imports EnvDTE90a
Imports EnvDTE100
Imports System.Diagnostics

Public Module RemoveLineOrBlock

    Sub RemoveLineOrBlock()
        Dim selection As TextSelection = DTE.ActiveDocument.Selection
        Dim lineNumber As Integer
        Dim line As String

        If selection.IsEmpty Then
            selection.StartOfLine(0)
            selection.EndOfLine(True)
        Else
            Dim top As Integer = selection.TopLine
            Dim bottom As Integer = selection.BottomLine

            selection.MoveToDisplayColumn(top, 0)
            selection.StartOfLine(0)

            selection.MoveToDisplayColumn(bottom, 0, True)
            selection.EndOfLine(True)
        End If

        selection.LineDown(True)
        selection.StartOfLine(vsStartOfLineOptions.vsStartOfLineOptionsFirstColumn,True)

        selection.Delete()

        selection.MoveToDisplayColumn(selection.BottomLine, 0)
        selection.StartOfLine(vsStartOfLineOptions.vsStartOfLineOptionsFirstText)

    End Sub

End Module

在Visual Studio 2022中

Ctrl + E, V

在Visual Studio 2019中

Ctrl + D

在Visual Studio 2017 (v15.6及以后版本)中

Ctrl + D

在Visual Studio 2017 (pre v15.6)

(编辑)这个功能现在是内置在VS2017: Ctrl + E, V复制一行，如果没有选择，或重复选择。你可以将它分配给不同的键组合，或者在菜单中找到它:

有关更多信息，请参阅此参考资料。

Pre VS2017，内置方法使用剪贴板

正如@cand提到的，你可以按Ctrl + C;Ctrl + V。

如果没有选择，Ctrl + C将复制该行。

宏观解决方案(VS2017前期)

如果你想实现一个更完整的解决方案，也许是创建一个更简单的键盘快捷键，或者你不想影响剪贴板，请参阅以下指南:

Visual Basic: Imports System Imports EnvDTE Imports EnvDTE80 Imports System.Diagnostics Public Module DuplicateLastLineModule Sub DuplicateLine() Dim line As String DTE.ActiveDocument.Selection.StartOfLine(0) DTE.ActiveDocument.Selection.EndOfLine(True) line = DTE.ActiveDocument.Selection.Text DTE.ActiveDocument.Selection.EndOfLine() DTE.ActiveDocument.Selection.NewLine() DTE.ActiveDocument.Selection.StartOfLine(0) DTE.ActiveDocument.Selection.Text = line End Sub End Module To create the macro, just go to the macro explorer ("Tools->Macros->Macro Explorer" or Alt+F8) and copy paste the code in a new module. Now just assign a keyboard shortcut to it: go to Tools->Options... under Environment, click Keyboard in the "Show Commands Containing" textbox, enter "duplicate" (this according to the name you gave the module.) you should now see the macro in the list below choose "Text Editor" from the "Use new shortcut in" list set focus in the "Press shortcut keys" textbox and hit the combination on the keyboard you wish to use for it (Ctrl+Shift+D in my case) hit the "Assign" button you should now see the shortcut in the "Shortcuts for selected command" textbox hit the OK button And that's it. Enjoy!

如果你有一个macos版本，cmd+shift+D可以帮你完成这项工作

在visual studio代码(WebMatrix)中:

向下复制行:Shift + Alt +向下

复制线:Shift + Alt +向上

删除行:Ctrl + Shift + k

在Visual Studio 2013中，可以使用Ctrl+C+V

不是答案，只是一个有用的补充: 作为免费赠品，我刚刚发明了(嗯……记得不能用调整由Lolo发布的代码)RemoveLineOrBlock宏。享受吧!

Imports System
Imports EnvDTE
Imports EnvDTE80
Imports EnvDTE90
Imports EnvDTE90a
Imports EnvDTE100
Imports System.Diagnostics

Public Module RemoveLineOrBlock

    Sub RemoveLineOrBlock()
        Dim selection As TextSelection = DTE.ActiveDocument.Selection
        Dim lineNumber As Integer
        Dim line As String

        If selection.IsEmpty Then
            selection.StartOfLine(0)
            selection.EndOfLine(True)
        Else
            Dim top As Integer = selection.TopLine
            Dim bottom As Integer = selection.BottomLine

            selection.MoveToDisplayColumn(top, 0)
            selection.StartOfLine(0)

            selection.MoveToDisplayColumn(bottom, 0, True)
            selection.EndOfLine(True)
        End If

        selection.LineDown(True)
        selection.StartOfLine(vsStartOfLineOptions.vsStartOfLineOptionsFirstColumn,True)

        selection.Delete()

        selection.MoveToDisplayColumn(selection.BottomLine, 0)
        selection.StartOfLine(vsStartOfLineOptions.vsStartOfLineOptionsFirstText)

    End Sub

End Module