copy

问题 This question already has an answer here : What does map(&:name) do in this Ruby code? (1 answer) Closed 5 years ago . For example, if I use rename method in mongo ruby driver, I can check the code here What exactly is happening when I am using map(&:attributes)? I think this means tags.map(&:attributes.to_proc).join(' '), but I am not sure why I am getting "undefined method `each_pair' for Arrayxxxxx" error with this command: TableA.create(TableB.all.map(&:attributes)) Any insight will be

问题 In my app I am sending a request to the web server and getting some results, then I am parsing this result and storing this result string into other class object string. For example: @interface GraphView : UIViewController<UITabBarControllerDelegate> { NSMutableString *graphTempString; } @property(nonatomic,retain) NSMutableString *graphTempString; @end TSUClass .m implementing NSURLConnection(), connectionDidFinishLoading(), -(void) parser:(NSXMLParser *) parser didStartElement:(NSString *)

问题 I am using this code: My.Computer.FileSystem.CopyFile( "Software\Service Packs\WindowsXP\SP2\WindowsXP-KB835935-SP2-ENU.exe", "C:\Service Pack\WindowsXP-KB835935-SP2-ENU.exe") Process.Start("C:\Service Pack\WindowsXP-KB835935-SP2-ENU.exe") This simply copies Windows XP Service Pack from a pendrive to the C Drive located above. I wish to add a Progress bar to the Form and need the code in order to do this. Thank you, 回答1: Drag a ProgressBar and Timer to the form. Add the following code under

问题 This script works to rename files while copying them if they are duplicates. I need to rename the current destination file first then copy the source file as is. Any ideas? function Copy-FilesWithVersioning{ Param( [string]$source, [string]$destination ) Get-ChildItem -Path $source -File ForEach-Object { $destinationFile = Join-Path $destination $file.Name if ($f = Get-Item $destinationFile -EA 0) { # loop for number goes here $i = 1 $newname = $f.Name -replace $f.BaseName, "$($f.BaseName)_$I

问题 I'm using the codes below to combine all text files from a folder to a simple files, the problem is that the code does not break lines and ends up blending the words. copy *.txt Combined.txt Echo. Echo Done! Echo. pause When it ends it, he stay like this: abcblue 123abcyellow 123abc When I expected it to go like this: ABC blue 123 abc yellow 123 abc Whats wrong? NOTE: I found this snippet of code on the internet and it looks like the subject: FOR %f IN (*.txt) DO type %f >> Combined.txt &

问题 If I have the following json file C:\PostgresStage>type test2.json {"key":"Hello \"World\""} And I try to load it into a json or text column using the COPY command I end up with invalid JSON because copy appears to strip the escape characters from the file as can be seen below postgres=# \d+ T1 Table "public.t1" Column | Type | Collation | Nullable | Default | Storage | Stats target | Description --------+------+-----------+----------+---------+----------+--------------+------------- data |

问题 I have RichTextBox in WPF . I can copy and paste (drag&drop) images from Web Sites and from Windows Photo Viewer . But If i try to copy image from directory I'll can't paste in my RichTextBox But if I create a special button to paste image from directory it will work: private void Button_Click(object sender, RoutedEventArgs e) { string[] files = (string[])Clipboard.GetData(DataFormats.FileDrop); if (files != null && files.Length > 0) { foreach (var file in files) { // Filter out non-image

问题 I started doing development with google scripts few days ago and recently joined stackoverflow. I have a problem with addToFolder() function. I have the following piece of code that copies my new spreadsheet into a folder (test/sheets) in my Google Drive: var ss = SpreadsheetApp.create("test"); var ssID = ss.getId(); DocsList.getFileById(ssID).addToFolder(DocsList.getFolder("test/sheets")); My problem is that now I have 2 versions of the same file (one in the root of my Google Drive folder

问题 Let's say I have a numpy array a and create b like this: a = np.arange(3) b = a If I now change b e.g. like this b[0] = 100 and print a , b , their id s and .flags print a print a.flags print b print b.flags print id(a) print id(b) I obtain [100 1 2] C_CONTIGUOUS : True F_CONTIGUOUS : True OWNDATA : True WRITEABLE : True ALIGNED : True UPDATEIFCOPY : False [100 1 2] C_CONTIGUOUS : True F_CONTIGUOUS : True OWNDATA : True WRITEABLE : True ALIGNED : True UPDATEIFCOPY : False 139767698376944

问题 How to copy a table from one database to another , I'm developing a windows app using c# in .NET.The copying has to be done by the app. Extract data into an empty table in database 2 from a filled table in database1.I'm using access db , Oledbconnection. I found some answers for sql server though , but not really helping. 回答1: You can refer to the second DB in SQL and execute against a connection to the first mdb/accdb: Connection using System.Data.OleDb; <...> string ConnString = @"Provider