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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: All I want to do is node.Attributes["class"].Value But if the node doesn't have the class attribute, it crashes. So, I have to check for its existence first, right? How do I do that? Attributes is not a dict (its a list that contains an internal dict??), and there's no HasAttribute method (just a HasAttributes which indicates if it has any attribute at all). What do I do? 回答1: Try this: String val; if(node.Attributes["class"] != null) { val = node.Attributes["class"].Value; } Or you might be able to add this public static class

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to write a Firefox add-on for personal use and to learn a bit more about both JavaScript and the Firefox Add-on SDK. The add-on should open a vivo.sx URL and then automatically start the player, but I have 2 issues. I hope you guys can help me. The relevant add-on-code: function vivoplay() { pageMod.PageMod({ include: "https://vivo.sx/*", contentScriptFile: "./vivoplay.js", onAttach: play }); function play(worker) //Fires 2 Times { console.log("Timeout"); tmr.setTimeout(sendplay, 14000); function sendplay() { var a = 0; worker

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: Why split the 5 answers I am encountering an issue where having a ending script tag inside a quoted string in JavaScript, and it is killing the script. I assume this is not expected behaviour. An example of this can be seen here: http://jsbin.com/oqepe/edit My test case browser for the interested: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.4) Gecko/20091028 Ubuntu/9.10 (karmic) Firefox/3.5.4. 回答1: What happens? The browser HTML parser will see the within the string and it will interpret it as

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Recently I updated my ASP.Net MVC4 project to upgrade to jQuery 1.9.1. But since then I am getting a strange error as soon as any page is loaded: (Chrome) jquery-1.9.1.js:5823 Uncaught TypeError: Cannot call method 'createDocumentFragment' of null (IE10) Unable to get property 'createDocumentFragment' of undefined or null reference jquery-1.9.1.js, line 5823 character 3 The 'document' parameter being passed to its parent function createSafeFragment( document ) is always null. The error is persistent in IE10 as well as Chrome. Below is how

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Sometimes, I've met the element which is unable to click with the normal script by selenium so I have to use javascript to execute my script. 回答1: (( JavascriptExecutor ) DriverFactory . webDriver ). executeScript ( 'Your JavaScript-Code' , argument ); 回答2: I believe you mean, Executng the Javascript code and get the element. You can try this appraoch - https://docs.katalon.com/display/KD/%5BWebUI%5D+Execute+JavaScript 回答3: You can try using a custom keyword, inside of the package "yourPackage": @Keyword static clickJS ( TestObject

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: And: "Why does this particular script have this outcome?" From Getting the source directory of a Bash script from within , based on some code snippets offered by user l0b0 in his comment on that question, I used the following for a cron job: DIR=$(pwd) if [ $CRON == "true" ]; then # If the environment variable $CRON is set to true, we're probably in a cron job if [ $PWD == "/" ]; then # And if the current working directory is root, we're probably in a cron job DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd && echo x)" DIR="${DIR%x}" fi

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: i have 1.txt 2.txt and script.php 1.txt: a b c d 2.txt www rrr ttt yyy i want bash file to do this command in Linux: ./script.php -n a -j www>>n_j.txt ./script.php -n a -j rrr>>n_j.txt ./script.php -n a -j ttt>>n_j.txt ./script.php -n a -j yyy>>n_j.txt ./script.php -n b -j www>>n_j.txt ./script.php -n b -j rrr>>n_j.txt ./script.php -n b -j ttt>>n_j.txt . . i have a bat code working with wondows cmd..i wanna a code like it to work with Linux command line @ECHO OFF FOR /F "tokens=1 delims= " %%I IN (1.txt) DO FOR /F "tokens=1 delims= " %%E IN

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have users sending emails with some text I need to extract. Each user's email is mapped to a single mailbox. I'm currently using a cron job that polls the mailbox (postfix) every 5 minutes, checks for new messages, and sends it to a queue where I have workers parse them. I have two main questions: Is there a way I can parse the email as soon as it's received instead of polling the server? Also, how could I implement this to be scalable? For example, if there are 50 incoming messages per second. I'm programatically writing each user's email

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to call scripts from a directory (they are executable shell scripts) via python. so far so good: for script in sorted(os.listdir(initdir), reverse=reverse): if script.endswith('.*~') or script == 'README': continue if os.access(script, os.X_OK): try: execute = os.path.abspath(script) sp.Popen((execute, 'stop' if reverse else 'start'), stdin=None, stderr=sp.PIPE, stdout=sp.stderr, shell=True).communicate() except: raise Now what i Want is: lets say i have a bash script with a start functiont. from which I call echo "Something" Now I

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am currently calling a C# script file ( http://www.csscript.net ) from a C# app in Visual Studio 2010 using this method: var script = new AsmHelper(CSScript.Load( @"C:\temp\CSScriptTest\CSScriptTest\cstest.cs")); script.Invoke("*.LoopTest"); But I'm noticing that the performance on this is about twice what it takes to call a similar IronPython script using this method: var ironPythonRuntime = Python.CreateRuntime(); dynamic loadPython = ironPythonRuntime.UseFile( @"C:\temp\IronPythonTest\IronPythonTest\pytest.py"); loadPython.LoopTest();