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How to get Android AVD name from adb device name

Using the Android SDK from the command line, I can get a list of the running devices available using: ./adb ... the Eclipse ADT plugin does)? 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# - update-database: "A network-related or instance-specific error occurred while establishing a connection to SQL Server"

I have a simple C# project. This is my connection string in my web.config for the database: <connectionStrings> ... it again. Nothing changed. See Question&Answers more detail:os...

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

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When does CSS's !important declaration not work?

I am wondering if someone can put a bit of an authoritative reference summary of when the !important declaration ... to override inline styles. 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# - Weird operator precedence with ?? (null coalescing operator)

Recently I had a weird bug where I was concatenating a string with an int? and then adding another string after ... how this works to me? See Question&Answers more detail:os...

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

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cgi - Call PHP from virtual/custom "web server"

Basically, I'm trying to figure out how PHP can be called from a "web server". I've read the documentation, ... since all leads end up nowhere. 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 - Interprocess mutex with pthreads

I want to use a mutex which will be used to synchronize access to some variables residing in the memory ... that will be very appreciated. See Question&Answers more detail:os...

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

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tensorflow - Using Gensim Fasttext model with LSTM nn in keras

I have trained fasttext model with Gensim over the corpus of very short sentences (up to 10 words). I know that ... do it well. Any idea? 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# - Two-way binding of Xml data to the WPF TreeView

I am attempting to rewrite my ForestPad application utilizing WPF for the presentation layer. In WinForms, I am ... </forest> </forestPad> 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 - WebRTC video is not displaying

i am creating one-to-one webrtc video chatroom and this code does not working and i wanna know why function ... is video where i display See Question&Answers more detail:os...

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

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JAXB- @XmlMixed usage for reading @XmlValue and @XmlElement

I saw a similar question being posted here, yet it did not help me solve the problem so I am posting my ... in setPhrase(String value) method. 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# Convert a Base64 -> byte[]

I have a Base64 byte[] array which is transferred from a stream which i need to convert it to a normal byte[] how to do 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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c# - Why does .ToString() on a null string cause a null error, when .ToString() works fine on a nullable int with null value?

selectedItem has two fields: int? _cost string _serialNumber In this example, _cost and _serialNumber of selectedItem are ... on a null string? See Question&Answers more detail:os...

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

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android - Fragment's onSaveInstanceState() is never called

I'm trying to save data in a Fragment's onSaveInstanceState(), but the method is never called. Can someone help? ... icicle); //More stuff } } See Question&Answers more detail:os...

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

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599 views

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reactjs - Invariant failed: You should not use <Route> outside a <Router>

I use react-router-dom for routing in my React application. Part of my app extracted in another package. List of ... .getElementById('root'), ); See Question&Answers more detail:os...

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

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ecma262 - Javascript IN operator compatibility

Can someone tell me since which ECMA version the IN operator is available and which browsers (versions) support ... an attribute of myObject } See Question&Answers more detail:os...

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

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329 views

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python - How to parse string dates with 2-digit year?

I need to parse strings representing 6-digit dates in the format yymmdd where yy ranges from 59 to 05 (1959 to ... am using Python 2.7. 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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383 views

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c# - How can I disable model compatibility checking in Entity Framework 4.3?

I'm working with EF 4.3 and have a context which needs to talk to a database which was generated by ... limited options to work with laterally. See Question&Answers more detail:os...

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

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448 views

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c# - Can we have table without primary key in entity framework?

I was just practicing code first new database entity framework from msdn, I wanna know whether a table without ... code first new database EF? See Question&Answers more detail:os...

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

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742 views

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c# - Type of conditional expression cannot be determined because there is no implicit conversion between 'string' and 'System.DBNull'

param7[1].Value = tbLastName.Text.Length > 0 ? tbLastName.Text : DBNull.Value; Why is this impossible, and ... 20 parameters is just not way. See Question&Answers more detail:os...

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

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337 views

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c++ - What Is a Curly-Brace Enclosed List If Not an intializer_list?

I asked a question here: Lifetime Extension of a initializer_list return involving the non-functional code: const auto ... list in curly-braces? 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 - Why does integer division by zero 1/0 give error but floating point 1/0.0 returns "Inf"?

I'm just curious about this: When evaluating 1/0 in Java, the following exception occurs: Exception in thread "main ... } Why does this happen? See Question&Answers more detail:os...

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

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syntax - Are there binary literals in Java?

I want to declare my integer number by a binary literal. Is it possible in Java? See Question&Answers more detail:os...

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

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239 views

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python - Get request body as string in Django

I'm sending a POST request with JSON body to a Django server (fairly standard). On the server I need to ... , with the correct encoding applied? See Question&Answers more detail:os...

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

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241 views

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.net - Detecting the number of processors

How do you detect the number of physical processors/cores in .net? See Question&Answers more detail:os...

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

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502 views

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node.js - Google App Engine 502 (Bad Gateway) with NodeJS

I have a full web application using NodeJS, MongoDB (Mongoose as the driver) and ExpressJS. The project works ... any requests to my API? See Question&Answers more detail:os...

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

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256 views

1 answer

c++ - Enable a single warning in Visual Studio

Is there a compiler switch to enable a single warning in Visual Studio? The reason I ask is I want ... Warnings still only mention disabling. See Question&Answers more detail:os...

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

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468 views

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c++ - Why can't templates be within extern "C" blocks?

This is a follow-up question to an answer to Is it possible to typedef a pointer-to-extern- C -function type ... ) would have C++ linkage? See Question&Answers more detail:os...

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

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603 views

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Fatal Python error on Windows 10 ModuleNotFoundError: No module named 'encodings'

I'm installing Python on my Windows?10 laptop, and when I try to run it I get this: Fatal Python error ... 0x0000037c (most recent call first): See Question&Answers more detail:os...

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

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