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问题 In my app I\'m making a basic HTML help document. I wanted my app\'s logo in the HTML img tag itself, but I don\'t know how I\'d reference to the logo which will be stored in assets. Is this possible, if so how? Thanks for the help! 回答1: Put your Logo into the assets directory eg: assets/logo.png Then load your html with: webView.loadDataWithBaseURL("file:///android_asset/", htmlData, "text/html", "utf-8", null); Reference your img like: <img src="logo.png"> 回答2: Store the images in assets

问题 I am very new to D3, and wanted to see how an example would work locally. I copied and pasted the bar graph code to a local file called index.html, and also copied over the data.tsv. For some reason, absolutely nothing is showing up when I open the file on a browser! I tried changing the script src to \"d3/d3.v3.min.js\" because that is the folder the d3 I downloaded is in. However, this does not work either. For every example I have tried I have yet to successfully view a D3 example. Help

问题 Possible Duplicate: Using global variables in a function other than the one that created them I\'m using functions so that my program won\'t be a mess but I don\'t know how to make a local variable into global. 回答1: Here are two methods to achieve the same thing: Using parameters and return (recommended) def other_function(parameter): return parameter + 5 def main_function(): x = 10 print x x = other_function(x) print x When you run main_function , you'll get the following output >>> 10 >>>

问题 I am learning Python and am still a beginner, although I have been studying it for about a year now. I am trying to write a module of functions which is called within a main module. Each of the functions in the called module needs the math module to run. I am wondering if there is a way to do this without importing the math module inside the called module. Here is what I have: main.py : from math import * import module1 def wow(): print pi wow() module1.cool() module1.py : def cool(): print

问题 Is there a way to allow a user, after he has created a vector graph on a javascript svg canvas using a browser, to download this file to their local filesystem? SVG is a total new field for me so please be patient if my wording is not accurate. 回答1: It might be possible using the regular "Save" browser command, but it won't just save the SVG canvas, it will save the whole page. I believe your best bet is to use AJAX and send the whole SVG XML data as POST data to a server script, and have

问题 I\'m a newby with Spark and trying to complete a Spark tutorial: link to tutorial After installing it on local machine (Win10 64, Python 3, Spark 2.4.0) and setting all env variables (HADOOP_HOME, SPARK_HOME etc) I\'m trying to run a simple Spark job via WordCount.py file: from pyspark import SparkContext, SparkConf if __name__ == \"__main__\": conf = SparkConf().setAppName(\"word count\").setMaster(\"local[2]\") sc = SparkContext(conf = conf) lines = sc.textFile(\"C:/Users/mjdbr/Documents

问题 I\'m trying to get my subgrid to work with local data. However, when I click expand, I just get a Loading box like the grid is attempting to pull the data from somewhere. I\'m assuming I don\'t need a subGridUrl since the master grid\'s datatype is datatype:\'local\' . Is there anything else I should be doing? 回答1: There are no direct way to define subgrid with local data, but you can relatively easy implement the same behavior using subGridRowExpanded (Subgrid as Grid). What one need to do

问题 Same question as here but I need to go to local URL\'s in Firefox I tried with code like var url = \"file:///E:/Test/Test.htm\"; window.location.href = url; but id didn\'t work. Tried to go with window.location = url; and also tried with url = \"file://E:/Test/Test.htm\"; (double \"/\" instead of triple \"/\") and still doesn\'t work. Thanks 回答1: When I try this: window.location.href = "file:///C:/Users/Cerbrus/Documents/SomeFile.js" (Yes, it is a valid path.) Chrome throws me this error: Not

问题 How can I make JavaScript and images on my remote HTML page be loaded from assets folder (or just any local resource)? 回答1: Answer: 1. You MUST load the HTML into string: private String readHtml(String remoteUrl) { String out = ""; BufferedReader in = null; try { URL url = new URL(remoteUrl); in = new BufferedReader(new InputStreamReader(url.openStream())); String str; while ((str = in.readLine()) != null) { out += str; } } catch (MalformedURLException e) { } catch (IOException e) { } finally

问题 I created simple html file with simple ajax. index.html : <html> <head> <meta http-equiv=\"Content-Type\" content=\"text/html; Charset=UTF-8\"> <script type=\"text/javascript\" src=\"jquery.js\"></script> </head> <body> <div id=\"content\"></div> <script> function show() { $.ajax({ url: \"2.html\", cache: false, success: function(html){ $(\"#content\").html(html); } }); } $(document).ready(function(){ show(); setInterval(\'show()\',1000); }); </script> </body> </html> File 2.html located in