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Xcode 12, building for iOS Simulator, but linking in an object file built for iOS, for architecture 'arm64'

I am trying to get a large (and working on Xcode 11!) project building in Xcode 12 (beta 5) to prepare ... able to reproduce this with a simpler project yet. Question&Answers:os...

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

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python - How to manage local vs production settings in Django?

What is the recommended way of handling settings for local development and the production server? Some of them (like ... I've accepted the most popular method. Question&Answers:os...

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

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216 views

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android - How to make the corners of a button round?

I want to make the corners of a button round. Is there an easy way to achieve this in Android? Question&Answers:os...

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

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ios - Creating a segue programmatically

I have a common UIViewController that all my UIViewsControllers extend to reuse some common operations. I want to set ... the story board and do them by hand. Question&Answers:os...

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

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c# - How do I generate a stream from a string?

I need to write a unit test for a method that takes a stream which comes from a text file. I would like to ... Stream s = GenerateStreamFromString("a,b c,d"); Question&Answers:os...

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

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sql - Is there any difference between GROUP BY and DISTINCT

I learned something simple about SQL the other day: SELECT c FROM myTbl GROUP BY C Has the same result ... of GROUP BY with aggregate functions is understood. Question&Answers:os...

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

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Read/write to file using jQuery

Is there a way to get jQuery to get information to and from a file? Is it possible? How? Question&Answers:os...

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

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java - How to parse a mathematical expression given as a string and return a number?

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

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java - Concurrent Modification Exception : adding to an ArrayList

The problem occurs at Element element = it.next(); And this code which contains that line, is inside of an ... (Native Method) How can I make this work? Question&Answers:os...

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

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ruby - The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256

I get an error AWS::S3::Errors::InvalidRequest The authorization mechanism you have provided is not supported. Please use AWS4 ... .0) How to fix it? Thank you. Question&Answers:os...

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

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java - How can I increase the JVM memory?

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

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Python lambda closure scoping

I am trying to use closures to eliminate a variable from a function signature (the application is to make writing all the functions ... ..: f(1) c 1 c 1 c 1 Question&Answers:os...

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

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javascript - What is minimum millisecond value of setTimeout?

I would like to put var minValue = 0; if ( typeof callback == 'function' ) { setTimeout( callback, ... browsers and some old browsers for compatibility issues? Question&Answers:os...

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

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php - Fatal error: Call to undefined function mysqli_connect()

For 2 days now I'm trying to solve this, but unfortunately no result. Let me tell you my story about the problem ... new server it doesn't. Can anyone help me? Question&Answers:os...

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

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java - Struts2 INPUT result: how does it work? How are conversion / validation errors handled?

Main Question The work flow should be like this: if an String is entered other than a number, first it should pass ... </result> </action> </package> </struts> Question&Answers:os...

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

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238 views

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How to retrieve the text of a WebElement using Selenium - Python

I am new to Python and Web Scraping so please bear with me. I have been trying to build a web scraping ... for company purposes. Please help! Thanks so much Question&Answers:os...

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

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189 views

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sql - How can I list the tables in a SQLite database file that was opened with ATTACH?

What SQL can be used to list the tables, and the rows within those tables in an SQLite database file - ... ATTACH command on the SQLite?3 command line tool? Question&Answers:os...

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

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r - Formula with dynamic number of variables

Suppose, there is some data.frame foo_data_frame and one wants to find regression of the target column Y by some others ... R provide smth to write here?) } } Question&Answers:os...

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

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185 views

1 answer

c# - Find a private field with Reflection?

Given this class class Foo { // Want to find _bar with reflection [SomeAttribute] private string _bar; public string ... need to set to get the private fields? Question&Answers:os...

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

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jQuery .data() does not work, but .attr() does

Forgive me for not being more specific on this. I have such a strange bug. After the doc loads, I loop some elements ... change this text</a> </div> </script> Question&Answers:os...

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

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871 views

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variables - Error if don't check if {{object.field}} exists

I have a question about checking if some field in object exists. I want to print all categories which user has so ... Have you ever had a problem like this one? Question&Answers:os...

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

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183 views

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java - Why does InetAddress.isReachable return false, when I can ping the IP address?

InetAddress byName = InetAddress.getByName("173.39.161.140"); System.out.println(byName); System.out.println(byName. ... return false? I can ping the IP. Question&Answers:os...

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

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262 views

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.net - How do I get the list of open file handles by process in C#?

How do I get the list of open file handles by process id in C#? I'm interested in digging down and ... bounty on this, the implementation is nasty complicated. Question&Answers:os...

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

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258 views

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Is there a PHP function that can escape regex patterns before they are applied?

Is there a PHP function that can escape regex patterns before they are applied? I am looking for something along the lines of the C# Regex.Escape() function. Question&Answers:os...

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

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67 views

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java - Map implementation with duplicate keys

I want to have a map with duplicate keys. I know there are many map implementations (Eclipse shows ... something in commons-collections or google-collections? Question&Answers:os...

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

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295 views

1 answer

windows - Maximum Length of Command Line String

In Windows, what is the maximum length of a command line string? Meaning if I specify a program which takes ... to know what is the maximum allowable amount. Question&Answers:os...

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

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376 views

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windows - How to associate a file extension to the current executable in C#

I'd like to to associate a file extension to the current executable in C#. This way when the user clicks on ... to the icon for my executable. Thanks all. Question&Answers:os...

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

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180 views

1 answer

java - How to deploy a JavaFX 11 Desktop application with a JRE

I have a JavaFX (JDK 8) desktop business application, which uses Java Web Start for deployment. Users have Java ... . Thank you for any help or guidance. Question&Answers:os...

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

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