key-value

问题 I have a list like below: Lista =[('amazon', 'Amazon', 1.0), ('amazon', 'Alexa', 0.8), ('amazon', 'microsoft', 0.6), ('amazon', 'Amazon Pay', 0.7), ('amazon', 'Prime', 0.4),('alien', 'jack' , 0.0), ('alien', 'dell', 0.6), ('alien', 'apple', 0.0), ('alien', 'orange', 0.0), ('alien', 'fig', 0.0)] Now I am performing a basic check to see which pairs have value greater than 0.0 and then append them to a new list like below. new_words = [] Lista =[('amazon', 'Amazon', 1.0), ('amazon', 'Alexa', 0.8

问题 I am trying to find the value of a given key from a nested OrderedDict. Key points: I don't know how deep this dict will be nested The name of the key I am looking for is constant, it will be somewhere in the dict I would like to return the value of the key called "powerpoint_color" in this example... mydict= OrderedDict([('KYS_Q1AA_YouthSportsTrustSportParents_P', OrderedDict([('KYS_Q1AA', OrderedDict([('chart_layout', '3'), ('client_name', 'Sport Parents (Regrouped)'), ('sort_order',

问题 I have written the below code to find out the key(String) that has the maximum value(Integer) using TreeMap in JAVA. public static void maxprofitItem(int[] costs, int[] prices, int[] sales,String[] items) { TreeMap<String,Integer>map=new TreeMap<String,Integer>(); int[] profits=new int[items.length]; int maxvalue; for(int i=0;i<items.length;i++){ profits[i]=sales[i]*prices[i]-costs[i]*sales[i]; if(profits[i]>0){ map.put(items[i],profits[i]); } } Set setOfKeys = map.keySet(); Iterator iterator

问题 How can I rename keys in an array? Start with this array named $start_array, [0] => [date] => 2012-05-01 [revenue] => 100 [1] => [date] => 2012-05-02 [revenue] => 200 and change the keys for 'date' and 'revenue' so you get this $final_array: [0] => [x] => 2012-05-01 [y] => 100 [1] => [x] => 2012-05-02 [y] => 200 Here is my terrible attempt which works but is messy. $final_array = array(); $max = count($start_array); for ($j = 0; $j < $max; $j++) { $final_array[] = array('x' => $start_array[$j

问题 The query part of a URL seems to consist of key-value pairs separated by & and associated by = . I've taken to always using jQuery's $.param() function to URL-encode my query strings because I find it makes my code more readable and maintainable. In the past couple of days I find myself calling the MediaWiki API but when cleaning up my working prototype with hard-coded URLs to use $.param() I noticed some MediaWiki APIs include query parameters with keys but not values! api.php ? action=query

问题 I was using SQLite for an app in which I used to store 8-10 columns. I used to retrieve the data based upon a combination of any number of those attributes. Now I want to port to Redis. So I was building a test app for it. But I am unable to think of how to design my redis system in such a way that I would be able to retrieve the data based upon any of those attributes. Any of you has any advice/experience? 回答1: I think the best advice is to avoid sticking to the relational model when porting

问题 I have to make a post request and receive a response in Swift. I need to add values to the request ​​in key-value pairs format and then I get an answer (0 or 1). I don't know how to add the Dictionary values to the request.: var url = NSURL(string:"www.myurl.com") var request = NSMutableURLRequest(URL: url!) request.HTTPMethod = "POST" var params = ["email":"\(txtEmail.text)", "passw":"\(txtPassword.text)"] as Dictionary let data = //HOW CAN I LOAD THE DATA TO THE HTTPBODY REQUEST?? request

问题 HashMap savedStuff = new HashMap(); savedStuff.put("symbol", this.symbol); //this is a string savedStuff.put("index", this.index); //this is an int gives me the warning: HashMap is a raw type. References to generic type HashMap<K,V> should be parameterized 回答1: I'm not sure what you're trying to do, but since the example you provided uses hard-coded strings to index the data, it seems like you know what data you want to group together. If that's the case, then a Map is probably not a good

问题 For example, a deployment yaml file: apiVersion: extensions/v1beta1 kind: Deployment metadata: name: guestbook spec: replicas: 2 template: metadata: labels: app: guestbook spec: container: - name: guestbook image: {{Here want to read value from config file outside}} There is a ConfigMap feature with Kubernetes, but that's also write the key/value to the yaml file. Is there a way to set the key to environment variables? 回答1: I don't think it is possible to set image through variable or Config

问题 I have tons of objects which I want to save for offline use. Currently I use create NSCoder compliant classes for the objects and coded data to file to be available offline. So in the .h I introduce the objects: @interface MyClass : NSObject<NSCoding>{ NSNumber* myObject;} @property(nonatomic,retain) NSNumber* myObject; And in .m I make the inits: - (id) initWithCoder: (NSCoder *)coder { if (self = [super init]) { [self setMyObject: [coder decodeObjectForKey:@"myObject"]]; } } - (void)