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I have a button that I want to put on a 45 degree angle. For some reason I can't get this to work. Can someone please provide the code to accomplish this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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276 views

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scala - Spark - load CSV file as DataFrame?

I would like to read a CSV in spark and convert it as DataFrame and store it in HDFS with df.registerTempTable ... load CSV file as DataFrame in Apache Spark? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Git: Installing Git in PATH with GitHub client for Windows

How do I install Git in my PATH when using the GitHub client for Windows? I'm running into errors because ... add the Git that's already there to PATH? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to make a .jar out from an Android Studio project

I'm using AndroidStudio and I have this project as shown: What is inside the blue circle is myLib. myLib also ... 'm a beginner in the developer world. Thanks! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Undo git reset --hard with uncommitted files in the staging area

I am trying to recover my work. I stupidly did git reset --hard, but before that I've done only get add ... possible to undo git reset --hard in this situation? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - @RequestBody and @ResponseBody annotations in Spring

Can someone explain the @RequestBody and @ResponseBody annotations in Spring 3? What are they for? Any examples would be great. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Strings are objects in Java, so why don't we use 'new' to create them?

We normally create objects using the new keyword, like: Object obj = new Object(); Strings are objects, yet we do not ... is this? Can I make a String with new? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Using cookies with Android volley library

Does anybody know how to attach a session cookie to the request using com.android.volley library? When I log ... do that, at least not automatically. Thanks. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I use 3DES encryption/decryption in Java?

Every method I write to encode a string in Java using 3DES can't be decrypted back to the original string. Does ... e.printStackTrace(); } return null; } } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Custom date format with jQuery validation plugin

How can I specify a custom date formate to be validated with the Validation Plugin for jQuery? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Difference between ProcessBuilder and Runtime.exec()

I'm trying to execute an external command from java code, but there's a difference I've noticed between ... I do to fix the problem with ProcessBuilder? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

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c# - How to detect the currently pressed key?

In Windows Forms, you can know, at any time, the current position of the cursor thanks to the ... every keyboard notification (KeyDown and KeyUp events)? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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datetime - Convert timestamp in milliseconds to string formatted time in Java

I am trying to convert a long value (number of milliseconds elapsed from 1/1/1970 i.e. Epoch) to time ... toMinutes(logEvent.timeStamp) How do I go about this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Sharing a result queue among several processes

The documentation for the multiprocessing module shows how to pass a queue to a process started with multiprocessing. ... failed in various ways. Help please? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Crop image in android

I want to do cropping of image i found some pretty useful ones but somehow is like lacking of the darken the ... is the library I'm using drioid4you crop image Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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267 views

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rest - RESTful URL design for search

I'm looking for a reasonable way to represent searches as a RESTful URLs. The setup: I have two models, Cars ... /cars/color/blue to the multiple field case? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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867 views

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svn - How do I ignore files in Subversion?

How do I ignore files in Subversion? Also, how do I find files which are not under version control? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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165 views

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Check if a variable is a string in JavaScript

How can I determine whether a variable is a string or something else in JavaScript? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - "Undefined reference to" template class constructor

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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340 views

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macos - Setting ANDROID_HOME enviromental variable on Mac OS X

Could anybody post a working solution for setting ANDROID_HOME via the terminal? My path to the Android-SDK is /Applications/ADT/sdk. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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157 views

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javascript - Call AngularJS from legacy code

I'm using AngularJS to build HTML controls that interact with a legacy Flex application. All callbacks from the Flex app ... be added to the <select>). Thanks! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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184 views

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javascript - Controlling fps with requestAnimationFrame?

It seems like requestAnimationFrame is the de facto way to animate things now. It worked pretty well for me for ... a counter variable and then draws a circle. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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578 views

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python - Max retries exceeded with URL in requests

I'm trying to get the content of App Store > Business: import requests from lxml import html page = requests.get(" ... : [Errno -2] Name or service not known) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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274 views

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javascript - How to get current value of RxJS Subject or Observable?

I have an Angular 2 service: import {Storage} from './storage'; import {Injectable} from 'angular2/core'; import { ... certain point in time. How can I do this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - The MVC pattern and Swing

One of the design patterns which I find most difficult to get a real grasp of in "real Swing life" is the MVC ... some buttons to a user using the MVC pattern? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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826 views

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swift3 - How to provide a localized description with an Error type in Swift?

I am defining a custom error type with Swift 3 syntax and I want to provide a user-friendly description of the ... it work without casting to my error type? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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60 views

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c# - How to convert byte array to string

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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407 views

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c# - Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints

I make an outer join and executed successfully in the informix database but I get the following exception in my code ... this solves my problem. Thanks a lot. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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