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问题 When a GUI has a TkInter Scale and they click somewhere on the scale, the default behavior seems to be to slide the slider along the Scale in the direction towards the mouse (and then unexpectedly past their mouse). What I'd want instead is to have the slider always jump to and stay attached to the user's mouse point while they're clicking anywhere on the slider. If they click to a particular point on the Scale, the slider should jump directly to that point. I have some code below which

问题 How do popular version control systems (svn, git) handle storing revisions to a binary document? I have projects with binary sources that are periodically updated and need to be checked in (mostly Photoshop documents, custom data format and a few word processing documents). I've always been worried about checking in the binaries because I thought that the VCS might take a simple route of simply uploading a new copy of the binary each time - and hence my repository would get huge quickly. If I

问题 I want to delete an element from an array that I am displaying as a list using a ForEach , but I also need to send a HTTP request to a REST API and I need to put the index of the element in the body of the request. Here is my code: ForEach(self.symptoms, id: \.self) { symptom in VStack(alignment: .leading) { Text(symptom) } }.onDelete(perform: delete) Here is the delete function: func delete(at offsets: IndexSet) { self.symptoms.remove(atOffsets: offsets) // here I want to make the HTTP

问题 We have a scan that aborts on the code below, with the exception: org.sonar.java.se.ExplodedGraphWalker$MaximumStepsReachedException: reached limit of 16000 steps for method getServiceProviders#151 in class ServiceProviderService We looked at rules S2259 and S2583 and would like to keep notifications about null pointers. This happens in both "regular" and debug (-X) mode, so it's not issue 1406. In our case it really seems to be related to try/catch. (See sample method below.) Could it be a

问题 How do popular version control systems (svn, git) handle storing revisions to a binary document? I have projects with binary sources that are periodically updated and need to be checked in (mostly Photoshop documents, custom data format and a few word processing documents). I've always been worried about checking in the binaries because I thought that the VCS might take a simple route of simply uploading a new copy of the binary each time - and hence my repository would get huge quickly. If I

问题 I am using Python 3.6 and Tensorflow 2.0, and have some Keras codes: import keras from keras.models import Sequential from keras.layers import Dense model = Sequential() model.add(Dense(1)) model.compile(optimizer='adam',loss='mean_squared_error',metrics=['accuracy']) However I got the error: "Keras requires TensorFlow 2.2 or higher. Install TensorFlow via pip install tensorflow " when trying to run it. I checked on https://keras.io/, it says Keras was built on Tensorflow 2.0. So I am

问题 I am trying to use https://github.com/timmywil/panzoom from a typescript project compiled with webpack and babel. The problem is that the typescript method call: import Panzoom from '@panzoom/panzoom'; Panzoom(document.querySelector("#pic")); is transpiled to the following javascript: panzoom_1.default(document.querySelector("#pic")); which then generates the following run-time error: Uncaught TypeError: panzoom_1.default is not a function If I debug the javascript then panzoom_1 has the

问题 Lets say that i make a websocket server chat (node.js + socket.io). How would i store the chat messages, so that when a "new" user joins the chat, he will be seeing old chat messages, and not just the ones which has been sent while hes in the chat. Should the data be stored in variables in the server? Something like: var io = require('socket.io').listen(80); var saveData = { }; io.sockets.on('connection', function (socket) { socket.emit('news', { hello: 'world' }); socket.on('my other event',

问题 is it possible to update a device owner app by itself silently? My app is set to device owner, i want it to update itself silently. is it possible? the method i'm using is given below, private void install(Context context,String packageName,String apkPath){ PackageInstaller packageInstaller = context.getPackageManager().getPackageInstaller(); PackageInstaller.SessionParams params = new PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL); params.setAppPackageName

问题 I am trying to use https://github.com/timmywil/panzoom from a typescript project compiled with webpack and babel. The problem is that the typescript method call: import Panzoom from '@panzoom/panzoom'; Panzoom(document.querySelector("#pic")); is transpiled to the following javascript: panzoom_1.default(document.querySelector("#pic")); which then generates the following run-time error: Uncaught TypeError: panzoom_1.default is not a function If I debug the javascript then panzoom_1 has the