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我會盡我所能將它儘可能簡化。在csv中添加現有列，方法是將數值與數組匹配，並使用條件
是我迄今爲止所工作：
目前我有兩個CSV文件中...
test1.csv
test1ColumnN,test1ColumnI,test1ColumnD,selectDomainOne,selectDomainTwo,selectDomainThree
asdf,asdf,asdf,,,
nValue1,iValue1,dValue1,sValue1,,
qwer,asdf,zxcv,,,
nValue2,iValue2,dValue2,,,
qwer,zxcv,asdf,lkjh,,
nValue3,iValue3,dValue3,sValue3,,
zxcv,qwer,asdf,,poiu,
nValue1,iValue1,dValue1,,sValue1,
nValue4,iValue4,dValue4,,sValue4,
asdf,qwer,zxcv,fghj,mnbv,
nValue5,iValue5,dValue5,,,
asdf,cvbn,erty,,,uytr
nValue7,iValue7,dValue7,,,sValue7
nValue8,iValue8,dValue8,,,sValue8
nValue9,iValue9,dValue9,,,sValue9
qwer,asdf,zxcv,poiu,lkjh,mnbv
test2.csv
DomainCatagories,test2ColumnS,test2ColumnA,test2ColumnN,test2ColumnI,test2ColumnD
DomainOne,sValue1,aValue1,nValue1,,dValueN
DomainOne,sValue2,aValue2,,iValue2,dValue2
DomainOne,sValue3,aValue2,nValue3,iValue3,dValue3
DomainTwo,sValue1,aValue2,,iValue1,dValueN
DomainTwo,sValue4,aValue1,nValue4,,dValueN
DomainTwo,sValue5,aValue1,nValue5,iValue5,dValue5
DomainThree,sValue7,aValue2,nValue7,iValue7,dValue7
DomainThree,sValue8,aValue1,nValue8,iValue8,dValue8
DomainThree,sValue9,aValue2,nValue9,iValue9,dValue9
現在我想添加一個列（在test2.csv中）以匹配來自test1.csv和tes的sValue#與（$_.DomainCatagories='DomainOne'從test2.csv）和（$_.selectDomainOne從test1.csv）的條件t2.csv
要做到這一點，我使用下面的代碼...
#Create Column
$domainNameOne = @{}
$domainNameOne = Import-Csv 'C:\Scripts\Tests\test1.csv' | Where-Object {$_.selectDomainOne} | Select-Object -Expand 'selectDomainOne'
(Import-Csv 'C:\Scripts\Tests\test2.csv') |
Select-Object -Property *, @{n='Test1sValues';e={
if($_.DomainCatagories -eq 'DomainOne'){
if(($domainNameOne -contains $_.test2ColumnS) -and ($_.test2ColumnS)){
$_.test2ColumnS
} Else {
'Not found in test1'
}}}} | Export-Csv "C:\Scripts\Tests\test2-Temp" -NoType
Move-Item "C:\Scripts\Tests\test2-Temp" 'C:\Scripts\Tests\test2.csv' -Force
代碼後跑，我得到以下test2.csv（isCorrect）...
"DomainCatagories","test2ColumnS","test2ColumnA","test2ColumnN","test2ColumnI","test2ColumnD","Test1sValues"
"DomainOne","sValue1","aValue1","nValue1","","dValueN","sValue1"
"DomainOne","sValue2","aValue2","","iValue2","dValue2","Not found in test1"
"DomainOne","sValue3","aValue2","nValue3","iValue3","dValue3","sValue3"
"DomainTwo","sValue1","aValue2","","iValue1","dValueN",""
"DomainTwo","sValue4","aValue1","nValue4","","dValueN",""
"DomainTwo","sValue5","aValue1","nValue5","iValue5","dValue5",""
"DomainThree","sValue7","aValue2","nValue7","iValue7","dValue7",""
"DomainThree","sValue8","aValue1","nValue8","iValue8","dValue8",""
"DomainThree","sValue9","aValue2","nValue9","iValue9","dValue9",""
我有什麼不工作：
接下來我運行下面的代碼...
#Append Column
$domainNameThree = @{}
$domainNameThree = Import-Csv 'C:\Scripts\Tests\test1.csv' | Where-Object {$_.selectDomainThree} | Select-Object -Expand 'selectDomainThree'
(Import-Csv 'C:\Scripts\Tests\test2.csv') | % {
if($_.DomainCatagories -eq 'DomainThree'){
if(($domainNameThree -contains $_.test2ColumnS) -and ($_.test2ColumnS)){
$_.Test1sValues = $_.test2ColumnS
} Else {
$_.Test1sValues = 'Not found in test1'
}}} | Export-Csv "C:\Scripts\Tests\test2-Temp" -NoType
Move-Item "C:\Scripts\Tests\test2-Temp" 'C:\Scripts\Tests\test2.csv' -Force
而不是在正確的行中添加值，它完全清空整個文件並將其保存爲empty file。
最終目標
我想要什麼的代碼來生產，這是（在最後一列最後3行填寫通知值）...
"DomainCatagories","test2ColumnS","test2ColumnA","test2ColumnN","test2ColumnI","test2ColumnD","Test1sValues"
"DomainOne","sValue1","aValue1","nValue1","","dValueN","sValue1"
"DomainOne","sValue2","aValue2","","iValue2","dValue2","Not found in test1"
"DomainOne","sValue3","aValue2","nValue3","iValue3","dValue3","sValue3"
"DomainTwo","sValue1","aValue2","","iValue1","dValueN",""
"DomainTwo","sValue4","aValue1","nValue4","","dValueN",""
"DomainTwo","sValue5","aValue1","nValue5","iValue5","dValue5",""
"DomainThree","sValue7","aValue2","nValue7","iValue7","dValue7","sValue7"
"DomainThree","sValue8","aValue1","nValue8","iValue8","dValue8","sValue8"
"DomainThree","sValue9","aValue2","nValue9","iValue9","dValue9","sValue9"
我在做什麼錯那第二個代碼片段？
@RyanBemrose的代碼是可重複使用的兩個給定的文件。我不明白我的問題是什麼問題。 –
對我來說似乎很好。 Ryan可能會遇到MCVE的_Minimal_部分的問題 – Matt
在你不工作的例子中，你沒有傳遞任何東西給管道。 '}} $ _} |如果方括號是正確的，Export-Csv「C：\ Scripts \ Tests \ test2-Temp」-NoType「可以工作。這應該輸出更新的對象回管道。你也可以使用像[我見過你之前做過的]計算的屬性（http：// stackoverflow。COM /問題/ 34423960 /比較-日期與 - 不同的格式，在-CSV文件）或'附加Member' – Matt