Question

我想做什么

Public Function ClickedSlicerItem(ByRef SlicerOpt1)
Call Slicer_Opt
End Function

Sub Slicer_Opt()

Dim LastMonth As String
Dim MiddleMonth As String
Dim FirstMonth As String
Dim Date1 As Date
Dim MonthMax As String
Dim MinMonth As Date
Dim SlicerMthCache As SlicerCache
Dim SlicerOpt1 As SlicerItem

Date1 = WorksheetFunction.Max(Sheets("Activity Log").Range("H:H"))
MinMonth = WorksheetFunction.Min(Sheets("Activity Log").Range("H:H"))
MonthMax = Month(Date1)
LastMonth = MonthName(MonthMax, True)
MiddleMonth = MonthName(MonthMax - 1, True)
FirstMonth = MonthName(MonthMax - 2, True)

If SlicerOpt1.ActiveItem Is Not Null Then 
    Application.ScreenUpdating = False
If ActiveWorkbook.SlicerCaches("Slicer_Last_Log_in").SlicerItems(LastMonth).Selected = True Then
        ActiveSheet.ChartObjects("Chart 2").Activate
        ActiveChart.ChartType = xlBarClustered
    ElseIf ActiveWorkbook.SlicerCaches("Slicer_Last_Log_in").SlicerItems(MiddleMonth).Selected = True Then
        ActiveSheet.ChartObjects("Chart 2").Activate
        ActiveChart.ChartType = xlBarClustered
    ElseIf ActiveWorkbook.SlicerCaches("Slicer_Last_Log_in").SlicerItems(FirstMonth).Selected = True Then
        ActiveSheet.ChartObjects("Chart 2").Activate
        ActiveChart.ChartType = xlBarClustered
    End If
    Application.ScreenUpdating = True
Else: ActiveChart.ChartType = xlBarStacked100
End If


End Sub

发生了什么

$ echo $USERNAME
myusername
$ export USERNAME=newvalue
$ echo $USERNAME
newvalue

我尝试的内容

我尝试使用：$ echo $USERNAME myusername $ export USERNAME=newvalue $ echo $USERNAME myusername ...;
我尝试使用：sudo。

有用的笔记

OS：macOS Mojave 10.14
Direnv：https://github.com/direnv/direnv
我正在使用unset USERNAME

在发布之前我做了什么

我能够使用zsh（https://github.com/direnv/direnv）多次更改环境变量，并且一切运行良好。

我能够在direnv中设置局部环境变量。然后，我遇到了这个问题...

解决方案

https://unix.stackexchange.com/questions/483469/cannot-change-the-environment-variable

Answer 1

在zsh中，USERNAME var很神奇。这不是正常的导出环境变量。在手册页中：

   USERNAME <S>
          The username corresponding to the real user ID of the shell process.  If you
          have sufficient privileges, you may change the username (and also  the  user
          ID  and group ID) of the shell by assigning to this parameter.  Also (assum-
          ing sufficient privileges), you may start a single command under a different
          username (and user ID and group ID) by `(USERNAME=username; command)'

在其他shell中，例如bash和fish，这不是一个特殊的变量，您可以像设置任何其他env变量一样对其进行设置：

bash$ echo $USERNAME

bash$ export USERNAME=wtf
bash$ echo $USERNAME
wtf

为什么我不再能够在macOS上更改环境变量$ USERNAME？

1 个答案: