extract

问题 I know how to extract a zip archive using Python, but how exactly do I display the progress of that extraction in a percentage? 回答1: the extract method doesn't provide a call back for this so one would have to use getinfo to get the e uncompressed size and then open the file read from it in blocks and write it to the place you want the file to go and update the percentage one would also have to restore the mtime if that is wanted an example: import zipfile z = zipfile.ZipFile(some_source)

问题 I am trying to extract and print urls and their name (between <a href='url' title='smth'>NAME</a> existing in an html file (saved in disk) without using BeautifulSoup or another library. Just a beginner's Python code. The wishing print format is: http://..filepath/filename.pdf File's Name so on... I was able to extract and print the all urls or all the names solely, but I fail to append all the names that follows after a while in the code included just before the tag and print them below each

问题 I am trying to extract and print urls and their name (between <a href='url' title='smth'>NAME</a> existing in an html file (saved in disk) without using BeautifulSoup or another library. Just a beginner's Python code. The wishing print format is: http://..filepath/filename.pdf File's Name so on... I was able to extract and print the all urls or all the names solely, but I fail to append all the names that follows after a while in the code included just before the tag and print them below each

问题 I try using this Code : public void Extract(string SourceFile, string password) { SevenZipExtractor szip = new SevenZipExtractor(SourceFile, password); foreach (DataGridViewRow row in DGVFile.Rows) { string NameFile = (string)row.Cells[0].Value; int indexZip = szip.ArchiveFileData.IndexOf(NameFile); Stream pathDirectory = @"C:\\"; szip.ExtractFile(indexZip, pathDirectory); } } But thats Error, in line 7 and 8. Maybe anyone can explain how to get the index file in my archive with the name that

问题 I have HTML like: <tr> <td>Title:</td> <td>Title value</td> </tr> I have to specify after which <td> with text i want to grab text of second <td> . Something like: Grab text of first next <td> after <td> which contain text Title: . Result should be: Title value I have some basic understanding of Python and BeutifulSoupno and i have no idea how can I do this when there is no class to specify. I have tried this: row = soup.find_all('td', string='Title:') text = str(row.nextSibling) print(text)

问题 I have to extract xml value with in sql server. Normally when I extract value field that stored in mysql I can just simply use extractvalue(data,'parent/child/node') as value Can anyone tell me how can do this in sql server ? thanks . 回答1: Like so: declare @x xml = '<foo><bar>my value</bar></foo>' select @x.value('(/foo/bar)[1]', 'varchar(30)') The same will work for an XML column as well. 来源： https://stackoverflow.com/questions/13485110/how-to-extract-xml-value-field-with-in-sql-server

问题 Lets say I have string like this: String q = "foo (one) bla (two) zoo key hola (tree) (four) five" I want to extract the strings in parentheses into string array so this would be true: stringArray[3].equals("four") Is there something in commons package or other trick to do this? 回答1: Pattern p = Pattern.compile("\\((.*?)\\)"); Matcher m = p.matcher("abc (one) abc (two) abc"); List<String> result = new ArrayList<String>(); while(m.find()) result.add(m.group(1)); 来源： https://stackoverflow.com

问题 I try to extract text from a large pdf, but i only get the first pages, i need all text to will be passed to a string variable. This is the code public class ParsePDF { public static void main(String args[]) throws Exception { try { File file = new File("C:/vlarge.pdf"); String content = new Tika().parseToString(file); System.out.println("The Content: " + content); } catch (Exception e) { e.printStackTrace(); } } } 回答1: From the Javadocs: To avoid unpredictable excess memory use, the returned

问题 If I have this HTML <div class="comment-body"> [img]http://topnews.net.nz/images/YouTube-3.jpg[/img] random text here </div> <div class="comment-body"> [img]http://blog.brightcove.com/sites/all/uploads/FACEBOOK%20ICON.png[/img] random text here </div> how using jquery can I extract the value between [img] and [/img] and set it as a variable data-src2="" within an <img> element giving <div class="comment-body"> <img src="samesrc" class="commentimg" data-src2="http://topnews.net.nz/images

问题 I need to use the function extract() to do a weighted average extraction from a raster using a grid cell of equal sized squares. My polygon grid is in UTM21n and the raster is in GCS WGS84 datum D. Do I have to reproject the raster before using it into extract()? Or will the function handle it properly? 回答1: You can find the source code of function extract for SpatialPolygons here. The code starts with the following snippet: setMethod('extract', signature(x='Raster', y='SpatialPolygons'),