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问题 Is it possible to add a tool bar inside QWidget that is placed inside a tab (in QTabWidget ) ? The idea is to put a separate tool bar for each tab. It seems that tool bars can only be placed inside QMainWindow . 回答1: QToolBar is an ordinary QWidget , you can add it to a layout. 来源： https://stackoverflow.com/questions/5227889/toolbars-inside-tabs

问题 In my application i have a Startup Window that contains (Tips, Information, etc.). A part of the window contains 3 Labels on the left side and 3 hidden Buttons on the right side. What i want is whenever a user hovers on one of the Labels the button which is located on the other side of the Label shows up. I know how to show the Button if i hover over it using Triggers , but how to show the button when i hover the Label . Is it possible for such thing to be done? 回答1: You can do that easily

问题 Using Xcode 9.4.1 and Swift 4.1 Having an enumeration with multiple cases from type Int, how can I print the case name by its rawValue? public enum TestEnum : UInt16{ case ONE = 0x6E71 case TWO = 0x0002 case THREE = 0x0000 } I am accessing the Enum by the rawValue: print("\nCommand Type = 0x" + String(format:"%02X", someObject.getTestEnum.rawValue)) /*this prints: Command Type = 0x6E71 if the given Integer value from someObject.TestEnum is 28273*/ Now I additionally want to print "ONE" after

问题 So I've been reading GitHub developer docs and about webhooks they have the following statement: Webhooks allow you to build or set up GitHub Apps which subscribe to certain events on GitHub.com. When one of those events is triggered, we'll send a HTTP POST payload to the webhook's configured URL. Webhooks can be used to update an external issue tracker, trigger CI builds, update a backup mirror, or even deploy to your production server. You're only limited by your imagination. However, about

问题 How do you pass a parameter to an Azure CLI Task in Azure DevOps? Take the very basic example of showing basic info about a VM. A basic CLI command would be: az vm show --name myVM --resource-group dev -o table Now if I wanted to parameterize that command, so that I could pass in the VM Name, who would i do it? I've tried creating a CLI Task as both an in-line script and a file, passing parameters using the Azure DevOps Argument builder, but nothing seems to work. The parameter looks like

问题 To avoid path-relative style sheet import vulnerabilities should I attach css file on my page using full path e.g. <link href="http://mywebsite/style.css" type="text/css" rel="stylesheet" /> instead of <link href="style.css" type="text/css" rel="stylesheet" /> What do you think? 回答1: Just add a leading slash and make the path root-relative, rather than relative which this vulnerability relies on. No need for the domain / scheme. <link rel="stylesheet" href="/style.css"> 来源： https:/

问题 I am getting this error: ValueError: Items of feature_columns must be a _FeatureColumn. Given (type ): Index(['CreditScore', 'Age', 'Tenure', 'Balance', 'NumOfProducts', 'HasCrCard', 'IsActiveMember', 'EstimatedSalary', 'Exited'], dtype='object'). I am using tensorFlow lib. I want to get prediction results but I can not run m.train(input_fn=get_input_fn ,steps=5000) code. I always got the same error whatever I did. I used these input functions in the following but nothing changed. def input

问题 I have two objects where the second one requires the fist one to outlive it because it holds a reference to the first one. I need to move both of them into a thread, but the compiler is complaining that the first one doesn't live long enough. Here is the code: use std::thread; trait Facade: Sync { fn add(&self) -> u32; } struct RoutingNode<'a> { facade: &'a (Facade + 'a), } impl<'a> RoutingNode<'a> { fn new(facade: &'a Facade) -> RoutingNode<'a> { RoutingNode { facade: facade } } } fn main()

问题 I have a setup Metallb as LB with Nginx Ingress installed on K8S cluster. I have read about session affinity and its significance but so far I do not have a clear picture. How can I create a single service exposing multiple pods of the same application? After creating the single service entry point, how to map the specific client IP to Pod abstracted by the service? Is there any blog explaining this concept in terms of how the mapping between Client IP and POD is done in kubernetes? But I do

问题 There's a very handy function idn_to_ascii() in PHP 5.3, but I'm running 5.2.17 and I can't change that. How do I encode Unicode domain names to ascii then? 回答1: Peter's answer gives you the official IDN functions in PHP 5.2, and if possible it's probably the best answer. However some users will be unable to install a PECL library on their PHP system, so they would need to have a conversion library written in plain PHP which they can just include within their own code. Fortunately there is a