command

问题 I have this app using MVVM wpf model along with John Smith's relay command class. There are two main issues with it: 1) Even after disposing the view model and setting the commands to null, they are still fired afterwards. 2) The view model although disposed off, still seems to be in memory. It's using tab control on top and the memory never gets cleaned even after closing the tabs. This is related to the view model since once the properties of the view model are set to null, the next time

问题 I'm having a bit of trouble trying to run a java class on the command prompt. Its a very simple class and a friend of mine says it could be a problem with windows 8. Are there any suggestions. Here i'll show you the class and how I tried to compile it. I works fine in eclipse. package gmit; public class A { public static void main(String[] args) { System.out.println("hello"); } } In the command prompt I wrote C:\Users\eclipse\workspace\Oct1stcasting\src\gmit> followed by - javac A.java java A

问题 I want to use system("insert shell command here") and pass in a script. This script however, requires user input. I want to pass in the user input as well. How do I do this? I tried: system('./script') system('input1') system('input2') However, Ruby waits till the first system call is done and then only proceeds to go to the next one. Is it possible to do this? I've tried system('./script', 'input1') but that didn't work either. No luck with exec either. 回答1: You should look into the Open3

问题 I want to run a java program using shell script. The java program is in p2 directory and its name is maxconnect4 and I have already compiled it, the class name is maxconnect4. I write the shell commands like this: java p2/maxconnect4 arg1 arg2 arg3 This shell command does not work. It give an error: Exception in thread "main" java.lang.NoClassDefFoundError: p2/maxconnect However, I compile the java program in this way: javac p2/*.java, and it works. 回答1: Just use java -cp p2 maxconnect4 arg1

问题 I want to change 2 letters and mask the remaining letters. I changed the letters but didn't mask other letter. This change command is SELECT NAME, CONCAT(SUBSTRING(NAME, 1, 2), SUBSTRING(NAME, 4, 1), SUBSTRING(NAME, 3, 1), SUBSTRING(NAME, 5, ABS(LEN(NAME) -4))) AS CHANGELETTER FROM TESTBILGILER How can I do masking SQL SERVER 2014? 回答1: A little ugly, but here is another option Example Declare @YourTable table(SomeCol varchar(50)) Insert Into @YourTable values ('Chirstina') ,('John') ,('Susan

问题 I'm trying to add a command to my TextBlock but haven't had any success yet. I tried following: In XAML I've got a ItemsControl where I'm adding my TextBlocks : <ItemsControl ItemsSource="{Binding CellCollection}"> <ItemsControl.ItemTemplate> <DataTemplate> <TextBlock Background="{Binding Path=CellBackgroundColor}"> <TextBlock.InputBindings> <MouseBinding Command="{Binding TestCommand}" MouseAction="LeftClick"/> </TextBlock.InputBindings> </TextBlock> </DataTemplate> </ItemsControl

问题 I am trying to analyze a streaming video in my Android device. I want everything automated by scripts, because the device has to repeat the test a lot of times and I want to do it remotely (it is LAN connected). For that, I am using a special app, which starts to stream the video on a small-sized screen (it is special for that, I must expand the screen and I must use only this android app). A double-tap should be made to expand the screen (there is no button to expand, I can do it only double

问题 In Linux how do I find all soft links that link to a specific target directory or file? 回答1: You could use find 's -lname argument: find . -lname linktarget 回答2: Use find with -samefile and -L option, like this: find -L -samefile TARGET 回答3: What R1tschY sez, with an addition: find -L -samefile TARGET \! -name TARGET so TARGET won't be included in the result. (The backslash is required in bash so the ! won't be interpreted as a history directive.) 来源： https://stackoverflow.com/questions

问题 I am attempting to use p2 director with a command line parameter to get a list of installable units from a p2 repository. I started with the steps from this post to use the -list parameter: Command line to find units in a p2 repository using p2 query language However, when I run p2 director, the command line returns nothing. My command line looks like this: "C:\IBM\IBM_DevelopmentPackage_for_Eclipse_Win_X86_32_6.5.5\eclipseDevelopmentPackage\eclipse"\eclipsec.exe -application org.eclipse

问题 I know that os.popen is deprecated now. So which is the easiest way to convert a os.popen command to subprocess. cmd_i = os.popen('''sed -n /%s/,/%s/p %s | grep "Invalid Credentials"''' % (st_time, en_time, fileName)) 回答1: The subprocess code will be roughly equivalent. output = subprocess.check_output( '''sed -n /%s/,/%s/p %s | grep "Invalid Credentials"''' % (st_time, en_time, fileName), shell=True) The output is captured into a variable, rather than spilled out onto standard output outside