command

问题 I want to run an executable file in my iOS app. (or execute some command line commands) I think this can be done with the help of NSTask, but that doesn't seem to be available in iOS (its available for mac OS X only). So, How can i run an executable from my app ? OR How can i execute shell commands from my app ? How can i make use of NSTask in iOS ? Are there any other libraries like NSTask which i can make use of ? If none of the above is possible, please let me know a way around. I want my

问题 I must confess I have problems understanding the way wpf works. I have a usercontrol BottomControl nested in my Mainwindow . If a Button in BottomControl is clicked I want certain changes in my Mainwindow (changing content of a textbox for example) to occur. The easy thing to do is obviously to just call a public procedure in the Click_Event but this is not quite elegant. I got so far as to use RoutedCommands. public static readonly RoutedCommand BottomGridReSize = new RoutedCommand(); In

问题 I am trying to run ffmpeg application from python.I am using the following code to execute the application import subprocess subprocess.call(['C:/ffmpeg/bin/ffmpeg.exe']) by this command the application is getting executed. could somebody tell me how can i pass commands to the application, i tried subprocess.call(['C:/ffmpeg/bin/ffmpeg.exe','ffmpeg -i 2.mp4 -vn -ab 128 outputaudio.mp3']) but its not working. 回答1: They need to be individual args: subprocess.check_call(['C:/ffmpeg/bin/ffmpeg

问题 I'd like to not only capture the output of a command like with (with-output-to-string (lambda () (system "ls -la"))) But also would like to be able to access the exit code, so that I do not have to parse the output to know whether the command was successful or not and can react on it accordingly. How do I do this in Racket? I found the documentation about subprocess, but I don't know how to provide all the arguments like standard out. I'd like to see some comprehensive example, in which the

问题 so i have a question relating to a project i'm working on: what events are used to trigger a command in a button control? is it only the click event? because when i click on a button my command will be executed after my mouse button is released? so thats why i want to know. <Button x:Name="ClickButton" Content="Click here" HorizontalAlignment="Left" Margin="325,123,0,0" VerticalAlignment="Top" Width="75" Command="{Binding ClickHereCommand}"/> Code in the ViewModel public ICommand

问题 I've recently changed jobs and I get to get my hands dirty on some scripting which I've always wanted to learn. I was given an existing batch file and wanted to gussy it up. Previously, this batch file would scan an IP addressed that you are prompted to enter. I want to change this to loop the command based on a list of IP addresses from a text file, only I'm having problems doing that. I figured that I can do this one of two ways: 1) Run a batch file that will get the IP address, then run

问题 forfiles /p "P:\a3\" /s /m *.wss /c "cmd /c dewssdos @file" DeWssDos.exe, that I call here has a PAUSE in it and I can not edit the exe. How do I skip the PAUSE from within my code? 回答1: I think the pause would be passed by just hitting Y and a new line. forfiles /p "P:\a3\" /s /m *.wss /c "cmd /c echo y &echo.|dewssdos @file" I hope this could help! 回答2: Thank you for your answer! I am sorry to have wasted your time. Unfortunately I totally overlooked an option in the DOS Tool itself... -P

问题 I have some Vxworks embedded os and I want to check the netstat . This is what I tried: -> inetstatShow And the output is: C interp: unknown symbol name 'inetstatShow'. How can I have netstat command in this? 回答1: inetstatShow is provided by netShow library - you need to be sure that your OS configuration includes netShow, or you can dynamically load it using ld. The lkup function can be used to list symbols that are available to the shell. Try lkup "Show" to list all symbols that include the

问题 Okay so here's another one about the StarMade server. Previously I had this script for detecting a crash, it would simply search through the logs: #!/bin/bash cd "$(dirname "$0")" if ( grep "[SERVER] SERVER SHUTDOWN" log.txt.0); then sleep 7; kill -9 $(ps -aef | grep -v grep | grep 'StarMade.jar' | awk '{print $2}') fi It would find "[SERVER] SERVER SHUTDOWN" and kill the process after that, however this is not a waterproof method, because with different errors it could be possible that the

问题 In my program I have two main files, the first with the data and the second with labels (or titles of my graphics): File total1 (data) 3 10000 3 32039232 1 0.0017290351 2 0.0002781092 3 10001 3 32101193 1 0.0045398899 2 0.0032875689 3 1000 1 60233253 1 0.0022057964 2 6.747e-06 3 10002 3 32108182 1 0.0219913914 2 0.0102120679 3 10003 3 32133994 1 0.0007025013 2 0.0010197563 3 10004 3 32192498 1 0.0029210855 2 0.0036980008 3 10005 3 32230041 1 0.0005408603 2 0.0015782048 3 10006 3 32271305 1 1