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In Ansible, how to combine variables from separate files into one array?

In Ansible, in a role, I have vars files like this: vars/ app1.yml app2.yml Each file contains vars ... to make something like this possible. See Question&Answers more detail:os...

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serialization - java.io.StreamCorruptedException: invalid stream header: 7371007E

I have a client Server application which communicate using objects. when I send only one object from the client to ... , getter and setters } See Question&Answers more detail:os...

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c++ - Can I use parameters for the table name in sqlite3?

I'm having some strange feeling abour sqlite3 parameters that I would like to expose to you. This is my ... name before preparing the query? 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 - Are the angle brackets (< or >) special in a regular expression?

I am trying to get a regex expression to accept < and > as my outside delimiters to grab all the content in between ... $.span.html(text); } }; See Question&Answers more detail:os...

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Why can't I find Java desktop application in Netbeans 7.1

I downloaded Netbeans 7.1 with all bundle from http://netbeans.org/downloads and installed it successfully on ... dragging components. 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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jpa 2.0 - Hibernate inserts duplicates into a @OneToMany collection

I have a question concerning Hibernate 3.6.7 and JPA 2.0. Consider following entities (some getters and ... am I missing something? Thanks See Question&Answers more detail:os...

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Uninitialized class members in Java do not issue any compiler errors. local variables however do. Why?

Consider the following code snippet in Java. It won't compile. package temppkg; final public class Main { ... are required to be initialized? See Question&Answers more detail:os...

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c++ - When a float variable goes out of the float limits, what happens?

I remarked two things: std::numeric_limits<float>::max()+(a small number) gives: std::numeric_limits<float>::max(). std:: ... q: " << q << endl; See Question&Answers more detail:os...

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python - Invalid Syntax in except handler when using comma

I am a beginner in Python and have been testing different kinds of sample code. When I started using Python3 ... 'login.html', error=error) See Question&Answers more detail:os...

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r - rlang::sym in anonymous functions

I recently notices that rlang::sym doesn't seem to work in anonymous functions and I don't understand why. ... . Can anyone explain why? See Question&Answers more detail:os...

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ios - Get the frame of UIBarButtonItem in Swift?

how could I get the frame of a rightbarbuttonItem in swift? I found this : UIBarButtonItem: How can I find ... with a fadeOut effect. Thanks See Question&Answers more detail:os...

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regex - Using $0 to refer to entire match in Javascript's String.replace

I'm highlighting instances of a search string within a set of text. I want to preserve the case of the ... this type of string replacement? See Question&Answers more detail:os...

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Flutter url_launcher Unhandled Exception: Could not launch youtube url (Caused by canLaunch)

I'm trying to use the url_launcher plugin to open youtube videos by link but the canLaunch function keeps throwing an error. I ... ), ), ); } } See Question&Answers more detail:os...

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Copy Groovy class properties

I want to copy object properties to another object in a generic way (if a property exists on target object, I ... ' assert adminUser.age == 27 See Question&Answers more detail:os...

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c# - streamWriter rewrite the file or append to the file

I am using this for($number=0; $number < 5; $number++){ StreamWriter x = new StreamWriter("C:\test.txt"); ... append to the same file using C# See Question&Answers more detail:os...

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Use jQuery to convert JSON array to HTML bulleted list

How can you convert an array of strings represented in JSON format and convert this to an HTML bulleted list using jQuery? See Question&Answers more detail:os...

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Can I use #include "pch.h" instead of #include "stdafx.h" as my precompile header in Visual Studio C++?

This is my first time working with C++ and properly getting into coding. I'm following the C++ tutorials on ... some kind of issue? Thanks! See Question&Answers more detail:os...

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c++ - std::async won't spawn a new thread when return value is not stored

Consider I have lamba foo which just does some stuff and doesn't need to return anything. When I do this: std:: ... ); What am I missing here? See Question&Answers more detail:os...

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c# - XPathSelectElement always returns null

Why is this Xpath not working using XDocument.XPathSelectElement? Xpath: //Plugin/UI[1]/PluginPageCategory[1]/Page ... .Root.CreateNavigator()); See Question&Answers more detail:os...

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c++ - Why do reference type members cause implicitly-declared copy assignment operator to be deleted

From CPP Reference: Deleted implicitly-declared copy assignment operator The implicitly-declared or defaulted copy assignment ... C# and Java). See Question&Answers more detail:os...

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html - Why is padding expanding a flex item?

In the snippet below, the first row has two divs with flex-grow: 1. As expected, each div takes up 50% of the screen. ... id="d"></div> </div> See Question&Answers more detail:os...

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c++ - Returning a void?

I do not understand why this code compiles without error: #include <iostream> template <class T> struct Test { ... is it a compiler tolerance? See Question&Answers more detail:os...

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SMTP Send is locking up my files - c#

I have a function thats sending messages ( a lot of them) and their attachments. It basically loops through a ... (attachment.FullName)); } } See Question&Answers more detail:os...

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c# - Disconnecting an element from any/unspecified parent container in WPF

I have a control that is a child of another control (as all non-root controls/elemts are in WPF). If I ... I haven't found anything like that. See Question&Answers more detail:os...

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javac - How to set a java compiler in Netbeans

I'm getting into Java7 development and I've added JDK7 into Java Platforms and have selected it in the project properties ... .cp"/> </nb-javac> 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 Collectors.toMap report value instead of key on Duplicate Key error?

This is really a question about a minor detail, but I'm under the impression to get something wrong here. If you add ... .value = value; } } } See Question&Answers more detail:os...

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android - ViewPager in ScrollView

I need to have a ViewPager inside a ScrollView but ViewPager just does not appear when it's in ScrollView, ... > </LinearLayout> </ScrollView> See Question&Answers more detail:os...

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python - QWidget::setLayout: Attempting to set QLayout "" on MainWindow "", which already has a layout

I'm making an application in PyQt4 and this is my code so far: import sys from PyQt4 import QtGui, QtCore ... ", which already has a layout See Question&Answers more detail:os...

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

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