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python - What does -1 mean in numpy reshape?

A numpy matrix can be reshaped into a vector using reshape function with parameter -1. But I don't know what ... the last element. Can you give an explanation? Question&Answers:os...

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

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css - React.js inline style best practices

Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...

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

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261 views

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Xcode 7 error: "Missing iOS Distribution signing identity for ..."

I tried to upload my App to iTunes Connect resp. AppStore and got the following error: Failed to locate or generate ... machine. What can I do to fix this? Question&Answers:os...

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

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c++ - What exactly is a reentrant function?

Most of the times, the definition of reentrance is quoted from Wikipedia: A computer program or routine is ... not, this question is not very meaningful. Question&Answers:os...

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

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ios - What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?

In the Mac and iOS platforms, memory leaks are often caused by unreleased pointers. Traditionally, it has always been ... , and garbage collection on Mac OS X? Question&Answers:os...

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

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github - Force LF eol in git repo and working copy

I have a git repository hosted on github. Many of the files were initially developed on Windows, and I wasn't ... -clone from github to get the desired effect? Question&Answers:os...

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

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python - Can I set max_retries for requests.request?

The Python requests module is simple and elegant but one thing bugs me. It is possible to get a requests. ... set the maximum number of retries for requests? Question&Answers:os...

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

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ios - Zooming MKMapView to fit annotation pins?

I am using MKMapView and have added a number of annotation pins to the map about a 5-10 ... (locationCenter, locationSpan); return region; } Question&Answers:os...

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

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Write lines of text to a file in R

In the R scripting language, how do I write lines of text, e.g. the following two lines Hello World to a file named "output.txt"? Question&Answers:os...

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

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Differences between git submodule and subtree

What are the conceptual differences between using git submodule and subtree? What are the typical scenarios for each? Question&Answers:os...

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

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458 views

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performance - fastest MD5 Implementation in JavaScript

There are many MD5 JavaScript implementations out there. Does anybody know which one is the most advanced, most bugfixed and fastest? I need it for this tool. Question&Answers:os...

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

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javascript - HTTP GET Request in Node.js Express

How can I make an HTTP request from within Node.js or Express.js? I need to connect to another service. ... the callback contains the remote server's response. Question&Answers:os...

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

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Interleave lists in R

Let's say that I have two lists in R, not necessarily of equal length, like: a <- list('a.1','a. ... works for the case where both lists have equal length. Question&Answers:os...

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

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c++ - Why is the template argument deduction not working here?

I created two simple functions which get template parameters and an empty struct defining a type: //S<T>:: ... the template arguments are char and int values? Question&Answers:os...

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

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bash - Assignment of variables with space after the (=) sign?

In Bash, assigning values to variables is done using T=content, with no spaces before or after the equal sign. ... What's the purpose of it have a space? Question&Answers:os...

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

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548 views

1 answer

servlets - HTTP Status 405 - HTTP method is not supported by this URL

I have the following servlet: public class MyServlet extends HttpServlet { private static final long serialVersionUID = ... caused and how can I solve it? Question&Answers:os...

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

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159 views

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Addition is not working in JavaScript

I am trying to learn Javascript. Here I am confused with the following code. http://rendera.heroku.com/usercode/ ... Please help me. Thanks a lot in advance Question&Answers:os...

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

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430 views

1 answer

delegates - Why cannot take address to a nested local function in 64 bit Delphi?

AS. since closing related questions - more examples added below. The below simple code (which finds ... compare function outside of btn1Click function. Question&Answers:os...

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

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64 views

1 answer

java - JLabel images array

I am trying to load the same jlabel stored image twice into a gridlayout panel, however instead of creating two ... [0]); boardPanel.add(boardLabels[1]); Question&Answers:os...

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

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114 views

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c# - Gradient Circles for Map Generator

So I'm making a map generator that makes random islands. It uses Perlin Noise at the heart of the ... perlin noise? Any advice would be greatly appreciated. Question&Answers:os...

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

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310 views

1 answer

android - What is the size limit for Logcat and how to change its capacity?

I believe Logcat is a circular store and I wonder what the limit is before it overwrites. Presumably this means ... Is there any way to expand its capacity? Question&Answers: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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html - border curved css - circle with curved end

I am building a website, and I'm having a hard time doing a detail in CSS I need to make a round border that has a ... </div> <div class="circle"></div> </div> Question&Answers:os...

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

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251 views

1 answer

Git SSH authentication

I have Debian, Fisheye and Git on my server. My git repos are managed by Fisheye. There is no authentication at the ... do I copy my public key at the server? Question&Answers:os...

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

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317 views

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python - Pandas: replace substring in string

I want to replace substring icashier.alipay.com in column in df url icashier.alipay.com/catalog/2758186/detail.aspx ... =True') but it return empty dataframe. Question&Answers:os...

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

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362 views

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php - MySQLi query returns only one row

This code only returns one row, but it should return 2 rows. I have tried the SQL in phpMyAdmin and it ... => $request_list_row //right here ), true); Question&Answers:os...

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

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84 views

1 answer

javascript - var name and window.name

If I define a JavaScript global variable called name, does that hide the window.name property? I ask this in the ... see that window.name is used in their code. Question&Answers:os...

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

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78 views

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java - What does "error: '.class' expected" mean and how do I fix it

Occasionally, new users encounter the following rather obscure compilation error '.class' expected: double d = 1.9; int ... them, and how should you fix them? Question&Answers:os...

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

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226 views

1 answer

Is there any standard for JSON API response format?

Do standards or best practices exist for structuring JSON responses from an API? Obviously, every application's data is ... message": "An error occurred!" } } Question&Answers:os...

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

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