我在一些編碼上掙扎,並希望有人能幫助我出來請,我想要做的是讀取文本文件並將column2轉換爲小寫並再次保存。Using.tolower函數與vb.net
但我得到類型'Integer'的值不能轉換爲'System.Globalization.CultureInfo'。之後。下降?
Dim Convertcolumn = From line In System.IO.File.ReadLines("Path")
Select line.Split(" "c)(1) & line.ToLower(1)
Dim writer As IO.StreamWriter = New IO.StreamWriter("Path2")
For Each line In Convertcolumn
writer.Write((line) & Environment.NewLine)
Next
更新編碼:
Dim Convertcolumn = From line In System.IO.File.ReadLines("C:\Test1.txt")
Select line.Split(" "c)(1) & line.Split(" "c)(1).ToLower()
Dim writer As IO.StreamWriter = New IO.StreamWriter("C:\Test2.txt")
For Each line In Convertcolumn
writer.Write((line) & Environment.NewLine)
Next
對不起時,我加入了不顯示的數據看起來像這樣
D00001 BLACK user
D00002 BLACK user
列的意見,我想將其更改爲
D00001 black user
D00002 black user
非常感謝漢斯 – user1413746