space

问题 I'm using project Euler to teach myself Haskell, and I'm having some trouble reasoning about how my code is being executed by haskell. The second problem has me computing the sum of all even Fibonacci numbers up to 4 million. My script looks like this: fibs :: [Integer] fibs = 1 : 2 : [ a+b | (a,b) <- zip fibs (tail fibs)] evens :: Integer -> Integer -> Integer evens x sum | (even x) = x + sum | otherwise = sum main = do print (foldr evens 0 (take 4000000 fibs)) Hugs gives the error "Garbage

问题 I am using ProcessBuilder to run FFMPEG to convert and label some of my MP3-Files. Manually using the following in a .bat file works as expected: "E:\Dokumente\workspace\MusicBot\ffmpeg\bin\ffmpeg.exe" -i "The Glitch Mob - We Can Make The World Stop.mp4" -metadata author="The Glitch Mob" -metadata title="We Can Make The World Stop" -ab 320k "mob.mp3" Now what i am trying to achieve using java's ProcessBuilder ProcessBuilder pr = new ProcessBuilder(FFMPEG_PATH, "-i", target.getAbsolutePath(),

问题 I am running a java command which takes the classpath and other file locations which have a white space. Windows doesn't seem to like it. I have the program running from C:\Program Files\Splunk , which has a white space Here is my command c1 = os.path.join(appdir, "bin", "apache-flume-1.3.1-bin", "lib", "*") c2 = os.path.join(appdir, "bin", "apache-flume-1.3.1-bin", "lib", "flume-ng-node-1.3.1.jar") c3 = os.path.join(appdir, "bin", "dtFlume.jar") classpath = c1 + os.pathsep + c2 + os.pathsep

问题 I've binded a indent-for-tab-command command to one the keys and I want it to make smart mode-specific indentation just like it already does but with tabs. In all the modes. It always inserts spaces instead of tabs. How to reconfigure/reprogram it? I want to use Emacs as fully customizable editor as it's announced to be. So that it would behave exactly as I want. I do not care about developers' opinions at all and want to customize everything. Is this wrong? 回答1: Not all major modes handle

问题 how can i create a pre-allocated file on android? something like a sparse file ? i need to make an applicaton that will download a large file , and i want to avoid having an out-of-space error while the download is commencing . my solution needs to support resuming and writing to both internal and external storage. i've tried what is written here: Create file with given size in Java but for some reason, none of those solutions worked. 回答1: this is odd. it works fine now . perhaps i've tested

问题 how can i create a pre-allocated file on android? something like a sparse file ? i need to make an applicaton that will download a large file , and i want to avoid having an out-of-space error while the download is commencing . my solution needs to support resuming and writing to both internal and external storage. i've tried what is written here: Create file with given size in Java but for some reason, none of those solutions worked. 回答1: this is odd. it works fine now . perhaps i've tested

问题 I need to check space used by a tablespace but I have no dba privs. Is there a way to do this? 回答1: Unfortunately without explicit permissions to the dba_free_space or dba_segments views you are stuck with your users default tablespace: SELECT ts.tablespace_name, TO_CHAR(SUM(NVL(fs.bytes,0))/1024/1024, '99,999,990.99') AS MB_FREE FROM user_free_space fs, user_tablespaces ts, user_users us WHERE fs.tablespace_name(+) = ts.tablespace_name AND ts.tablespace_name(+) = us.default_tablespace GROUP

问题 I noticed that when I use echo to print something to a file in DOS, a space is appended to the string. I need to print the string without the trailing space. Is there a way to do that, or as a workaround, remove trailing spaces from the file? 回答1: If I understood the problem correctly, you wrote the trailing space. Instead of echo string > file use echo string>file 回答2: Assuming you're talking about cmd.exe rather than the actual (rather outdated) MSDOS, there are a number of ways to do this,

问题 http://www.lethalmonk6.byethost24.com/index.html If you inspect with firebug the spacing between the "project-link" divs, there are a few pixels of added margin between each div. I have the margin set to 20 px, and then these little bits gets added on. Where is it coming from? 回答1: You're using display:inline-block so the white space between the elements is what you are seeing there. You can either remove the white space between the divs or use float: left instead. To elaborate... if you're

问题 A RichTextBox puts extra space between lines when a user presses enter or inserts text, and that's what I'm trying to get away from. I searched around and the only decent solution I found is this one: Setter SetParagraphMargin = new Setter(); SetParagraphMargin.Property = Paragraph.MarginProperty; SetParagraphMargin.Value = new Thickness(0); Style style = new Style(); style.TargetType = typeof(Paragraph); style.Setters.Add(SetParagraphMargin); rtb.Resources.Add("Style", style); But this still