properties

问题 Using python, one can set an attribute of a instance via either of the two methods below: >>> class Foo(object): pass >>> a = Foo() >>> a.x = 1 >>> a.x 1 >>> setattr(a, 'b', 2) >>> a.b 2 One can also assign properties via the property decorator. >>> class Bar(object): @property def x(self): return 0 >>> a = Bar() >>> a.x 0 My question is, how can I assign a property to an instance? My intuition was to try something like this... >>> class Doo(object): pass >>> a = Doo() >>> def k(): return 0 >

问题 We have mix of some legacy spring apps which are not yet migrated to spring-boot or spring cloud and also spring boot apps. I am working on creating a Spring component that will automatically decrypt spring properties when the environment is loaded if the property value is encrypted and has a prefix. The properties can be in .properties files(for legacy apps) or in .yaml files(newer spring boot apps). The component should be able to decrypt any spring property regardless of the source, and

问题 I know I can retrieve some settings.xml parameters using properties, like, for example ${settings.localRepository} to get the location of the local repository. Now imagine my settings.xml contains the following servers definition: <servers> <server> <id>server-dev</id> <username>devuser</username> <password>devpass</password> </server> <server> <id>server-hom</id> <username>homuser</username> <password>hompass</password> </server> </servers> Is there a way, given an id of a server to get the

问题 I know I can retrieve some settings.xml parameters using properties, like, for example ${settings.localRepository} to get the location of the local repository. Now imagine my settings.xml contains the following servers definition: <servers> <server> <id>server-dev</id> <username>devuser</username> <password>devpass</password> </server> <server> <id>server-hom</id> <username>homuser</username> <password>hompass</password> </server> </servers> Is there a way, given an id of a server to get the

问题 Question part 1: I've made an object constructor with properties in it, but I am wondering if I could define another property of the object within one of it's methods. For example: var Player = function(p1) { this.property1 = p1; this.property2 = 0; } then, can I define this.property3 in a method, like: Player.prototype.drawMethod = funtion() { this.property3 = 1; } and have it accessible, like: var obj = new Player(true); if (obj.property3 ===1 && obj.property1 === 1) { //code } else { obj

问题 I have been writing some code in the Unity3d engine and have been teaching myself C#. I have been trying to find an answer to my question but to no avail. I've come from java and been trying to use properties and I'm afraid that I don't understand them very well. When I tried something like this: public int Property { get { return Property; } set { Property = value; } } I get a stack overflow initializing the object when that property is accessed for assignment. I was able to fix it by just

问题 I want to access a static property using an instance. Something like this function User(){ console.log('Constructor: property1=' + this.constructor.property1) ; } User.prototype = { test: function() { console.log('test: property1=' + this.constructor.property1) ; } } User.property1 = 10 ; // STATIC PROPERTY var inst = new User() ; inst.test() ; Here is the same code in a jsfiddle In my situation I don't know which class the instance belongs to, so I tried to access the static property using

问题 I want to access a static property using an instance. Something like this function User(){ console.log('Constructor: property1=' + this.constructor.property1) ; } User.prototype = { test: function() { console.log('test: property1=' + this.constructor.property1) ; } } User.property1 = 10 ; // STATIC PROPERTY var inst = new User() ; inst.test() ; Here is the same code in a jsfiddle In my situation I don't know which class the instance belongs to, so I tried to access the static property using

问题 We are using Spark-Shell REPL Mode to test various use-cases and connecting to multiple sources/sinks We need to add custom drivers/jars in spark-defaults.conf file, I have tried to add multiple jars separated by comma like spark.driver.extraClassPath = /home/sandeep/mysql-connector-java-5.1.36.jar spark.executor.extraClassPath = /home/sandeep/mysql-connector-java-5.1.36.jar But its not working, Can anyone please provide details for correct syntax 回答1: As an example in addition to Prateek's

问题 I have a workbook with a lot of different formulas and I have one worksheet in it called Map, that I need to not auto calculate, every time I enter new data into a different worksheet. I have the following VBA code below on this worksheet. The problem is I need to manually go to the Developer tab, Properties, EnableCalculation, and select False. When I do it this way, the code works perfectly. However when I close and re-open the workbook, the EnableCalculation in the Properties, has been