text-files

问题 Using DevCon utility, I ran this command to get the list of all of the drivers installed in the computer. devcon.exe driverfiles * > drivers.txt The output looks like this: USB\ROOT_HUB20\4&361B340A&0 Name: USB Root Hub Driver installed from C:\windows\INF\usbport.inf [ROOTHUB.Dev]. 2 file(s) used by driver: C:\windows\system32\drivers\usbhub.sys C:\windows\system32\drivers\usbd.sys ACPI\PNP0C09\1 USB\ROOT_HUB20\4&361B340A&1 Name: USB Root Hub Driver installed from C:\windows\INF\usbport.inf

问题 i have a text file that is as such: "name email gender location" joe,joe@g.com,male,london fred,fred@g.com,male,new york I am trying to read this data into a html table using jsp/java. At the moment i can read them all into the table but the whole line appears in one cell under the headings. So at the moment they will all appear under name . how would i split each element of the comma delimited text file so they appear under the correct heading. <tr> <td>Name</td> <td>Email</td> <td>Gender<

问题 I have data that has the form sr:user1 target:user2 vt:4 time:12 sr:user3 target:user4 vt:42 time:120 Is there a simple way to make the data looks like the following by using R: sr target vt time user1 user2 4 12 user3 user4 42 120 回答1: Assume your data is in the file data.csv require(data.table) f <- fread("data.csv", header=FALSE) (x <- unstack(f, V2 ~ V1) ) 回答2: This makes the assumption that your text file has a regular arrangement: scan can handle regular list input of multiple line data

问题 I would like to init a collections.Counter object from a text file of word frequency counts. That is, I have a file "counts.txt": rank wordform abs r mod 1 the 225300 29 223066.9 2 and 157486 29 156214.4 3 to 134478 29 134044.8 ... 999 fallen 345 29 326.6 1000 supper 368 27 325.8 I would like a Counter object wordCounts such that I can call >>> print wordCounts.most_common(3) [('the', 225300), ('of', 157486), ('and', 134478)] What is the most efficient, Pythonic way 回答1: Here are two versions

问题 I am editing a textfile and changing content from one value to another. Everything works fine so far but I have reached a dead end when it comes to deleting a line i that file. I want a function that reads a file with similar content as below... Name Peter Length 185 Name Susan Length Name Harry Length 177 and removes all lines with the word Length NOT followed by anything and gives the result Name Peter Length 185 Name Susan Name Harry Length 177 I have used the code System.IO.File

问题 I'm trying to get the data from a text file into a HashMap. The text-file has the following format: it has something like 7 million lines... (size: 700MB) So what I do is: I read each line, then I take the fields in green and concatenate them into a string which will the HashMap key. The Value will be the fild in red. everytime I read a line I have to check in the HashMap if there is already an entry with such key, if so, I just update the value summing the value with the red; If not, a new

问题 I am working with a text file of about 12*10^6 rows which is stored on my hard disk. The structure of the file is: data|data|data|...|data\n data|data|data|...|data\n data|data|data|...|data\n ... data|data|data|...|data\n There's no header, and there's no id to uniquely identify the rows. Since I want to use it for machine learning purposes, I need to make sure that there's no order in the text file which may affect the stochastic learning. Usually I upload such kind of files into memory,

问题 I am looking for a way to write to a text file in C#. I have created a form that has a textbox for firstname, lastname, phone number, date of birth. When a user hits the button I would like that info wrote out to a text file. The examples I have found don't really tell me how. So that's why I am asking on here. 回答1: The very simplest way is just to use File.WriteAllText. Build the text into a single string however you want to, then use File.WriteAllText(filename, text); Alternatively you can

问题 I'm using vb.net windows form app. I want to remove line from list of lines. So if the line in textbox exists on that list, to be remove from list, and file to be saved. I have a file list.txt with list of numbers : 123-123 321-231 312-132 If I write in textbox : 321-231 and if list.txt contains that line then remove it. so result need to be : 123-123 321-132 I was trying with this code : Dim lines() As String Dim outputlines As New List(Of String) Dim searchString As String = Textbox1.Text

问题 I need a cmd script that deletes the first line in my text file. The scenario is the following: I take a txt file from FTP everyday, the problem is that it comes with blank line at the top then the headers of the file. Since I'm importing that file automatically into an access table, that blank line is causing me problems. So, I need a script that deletes the blank line and saves the file. 回答1: Windows/command prompt: more +1 filename.ext > otherfilename.ext That seems to work fine, however