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windows - Command line to remove an environment variable from the OS level configuration

Windows has the setx command: Description: Creates or modifies environment variables in the user or system environment ... remove the variable? See Question&Answers more detail:os...

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

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x86 - How to install ia32-libs in Ubuntu 14.04 LTS (Trusty Tahr)

I installed Ubuntu 14.04 (Trusty Tahr) yesterday. Everything seems OK. But when I tried to compile some C code, ... How can I fix this problem? See Question&Answers more detail:os...

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

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xcode - How can I use swift in Terminal?

I read What's new in Xcode 6. The article introduces some new feature about Xcode 6, and it says: Command Line ... to know how to get the REPL? See Question&Answers more detail:os...

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

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python - What is the difference between isinstance('aaa', basestring) and isinstance('aaa', str)?

a='aaaa' print isinstance(a, basestring)#true print isinstance(a, str)#true See Question&Answers more detail:os...

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

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Analogues of Java and .NET technologies/frameworks

I work in a shop that is a mix of mostly Java and .NET technologists. When discussing new solutions and architectures ... i marked it as such. See Question&Answers more detail:os...

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

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Xcode iOS project only shows "My Mac 64-bit" but not simulator or device

This just started happening that my iOS project is only showing "My Mac 64-bit" rather than the Simulator or my ... ? Xcode 4.2, Build 4D199 See Question&Answers more detail:os...

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

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javascript - Can an angular directive pass arguments to functions in expressions specified in the directive's attributes?

I have a form directive that uses a specified callback attribute with an isolate scope: scope: { callback: '&' ... (have the console open). See Question&Answers more detail:os...

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

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merge - Remove unnecessary svn:mergeinfo properties

When I merge stuff in my repository Subversion wants to add/change a lot of svn:mergeinfo properties to files that are ... for C++ SVN API code. See Question&Answers more detail:os...

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

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java - Should I strictly avoid using enums on Android?

I used to define a set of related constants like Bundle keys together in an interface like below: public ... avoid using enums on Android? See Question&Answers more detail:os...

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

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c# - How to Generate Unique Public and Private Key via RSA

I am building a custom shopping cart where CC numbers and Exp date will be stored in a database until processing ( ... .Length - salt.Length); } See Question&Answers more detail:os...

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

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eclipse - Avoiding "resource is out of sync with the filesystem"

I develop Java code with Eclipse and regularly get this message: resource is out of sync with the filesystem. Right- ... - should I use this? See Question&Answers more detail:os...

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

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Swift: Test class type in switch statement

In Swift you can check the class type of an object using 'is'. How can I incorporate this into a 'switch' ... what is the best way around this. See Question&Answers more detail:os...

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

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directory - How to find all links / pages on a website

Is it possible to find all the pages and links on ANY given website? I'd like to enter a URL and produce ... I simply need the directory tree. See Question&Answers more detail:os...

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

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javascript - Convert long/lat to pixel x/y on a given picture

I have a city map of Moscow. We modified a Google Maps image with some artistic elements, but ... point corresponding geographic coordinates. See Question&Answers more detail:os...

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

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Convert serial.read() into a useable string using Arduino?

I'm using two Arduinos to sent plain text strings to each other using newsoftserial and an RF transceiver. Each ... "testing statements", etc.? See Question&Answers more detail:os...

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

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c++ - What is the reason behind cbegin/cend?

I wonder why cbegin and cend were introduced in C++11? What are cases when calling these methods makes a ... overloads of begin and end? See Question&Answers more detail:os...

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

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debugging - How to see the values of a table variable at debug time in T-SQL?

Can we see the values (rows and cells) in a table valued variable in SQL Server Management Studio (SSMS) during debug time? If yes, how? See Question&Answers more detail:os...

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

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iphone - Weak and strong property setter attributes in Objective-C

What is the difference between weak and strong property setter attributes in Objective-C? @property(retain, [weak/ ... weak similar to assign? See Question&Answers more detail:os...

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

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git - Which characters are illegal within a branch name?

Which characters are illegal within a branch name? See Question&Answers more detail:os...

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

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machine learning - How to create a new gym environment in OpenAI?

I have an assignment to make an AI Agent that will learn to play a video game using ML. I want to create ... without the help of OpenAI Gym? See Question&Answers more detail:os...

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

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java - Spring Security with roles and permissions

I'm trying to set up role-based Security with permissions. I'm trying to do this together with Spring- ... implementation? Thank you very much. See Question&Answers more detail:os...

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

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xaml - How to create trapezoid tabs in WPF tab control

How to create trapezoid tabs in WPF tab control? I'd like to create non rectangular tabs that look like ... are not rectangles, but trapezes. See Question&Answers more detail:os...

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

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python - Impute categorical missing values in scikit-learn

I've got pandas data with some columns of text type. There are some NaN values along with these text columns. ... Any help would be very welcome See Question&Answers more detail:os...

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

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How to get a list of all files that changed between two Git commits?

Due to bureaucracy, I need to get a list of all changed files in my repository for a report (I started with ... I run to get this list? See Question&Answers more detail:os...

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

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javascript - How to sync Redux state and url hash tag params

We have a list of lectures and chapters where the user can select and deselect them. The two lists are ... also only updates one component. See Question&Answers more detail:os...

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

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ecmascript 6 - How can I alias a default import in JavaScript?

Using ES6 modules, I know I can alias a named import: import { foo as bar } from 'my-module'; And I know ... or can I?) alias a default import? See Question&Answers more detail:os...

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

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python - jupyter notebook running kernel in different env

I've gotten myself into some kind of horrible virtualenv mess. Help?! I manage environments with conda. Until ... be running under? thanks! See Question&Answers more detail:os...

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

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windows services - "Automatic" vs "Automatic (Delayed start)"

When installing Windows services there are two options for automatically starting a Windows service on Windows ... : ServiceConfig Element See Question&Answers more detail:os...

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

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