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c - Difference between array type and array allocated with malloc

Today I was helping a friend of mine with some C code, and I've found some strange behavior that I couldn't ... we start using list = malloc(n*sizeof(int))? Question&Answers:os...

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

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Does SVG support embedding of bitmap images?

Is an SVG image purely vectorial or can we combine bitmap images into an SVG image ? How about transforms ... Apparently .svg files are simply xml files. Question&Answers:os...

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

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122 views

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java - How to change menu item text dynamically in Android

I'm trying to change the title of a menu item from outside of the onOptionsItemSelected(MenuItem item) method. ... particular menu item outside of this method. Question&Answers:os...

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

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sql - Multi-statement Table Valued Function vs Inline Table Valued Function

A few examples to show, just incase: Inline Table Valued CREATE FUNCTION MyNS.GetUnshippedOrders() RETURNS TABLE ... /differences haven't really been explained. Question&Answers:os...

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

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270 views

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Explode PHP string by new line

Simple, right? Well, this isn't working :- $skuList = explode(' ', $_POST['skuList']); Question&Answers:os...

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

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348 views

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algorithm - Write a function that returns the longest palindrome in a given string

e.g "ccddcc" in the string "abaccddccefe" I thought of a solution but it runs in O(n^2) time Algo 1: Steps: ... runs in a better time. If possible O(n) time Question&Answers:os...

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

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shutil - How do I copy an entire directory of files into an existing directory using Python?

Run the following code from a directory that contains a directory named bar (containing one or more files) and a ... ?) Or is there an easier/better way? Question&Answers:os...

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

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269 views

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python - seek() function?

Please excuse my confusion here but I have read the documentation regarding the seek() function in python ( ... explanations are much appreciated, thank you. Question&Answers:os...

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

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c++ - What can I use instead of the arrow operator, `->`?

What is the arrow operator (->) a synonym for? Question&Answers:os...

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

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file permissions - How to read the mode field of git-ls-tree's output

$ git ls-tree fb3a8bdd0ce 100644 blob 63c918c667fa005ff12ad89437f2fdc80926e21c .gitignore 100644 blob ... git user's manual. Question&Answers:os...

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

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312 views

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debugging - How to get name of calling function/method in PHP?

This question already has answers here: Question&Answers:os...

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

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662 views

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command line - git update-index --assume-unchanged on directory

git 1.7.12 I want to mark all files below a given directory as assume-unchanged. 1) git update-index --assume ... need to be ignored so that users can do pulls. 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 get client IP address in ASP.NET CORE?

Can you please let me know how to get client IP address in ASP.NET when using MVC 6. Request.ServerVariables["REMOTE_ADDR"] does not work. Question&Answers:os...

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

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286 views

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Deep copy of a dict in python

I would like to make a deep copy of a dict in python. Unfortunately the .deepcopy() method doesn't exist ... The solution should be compatible with Python 3.x. Question&Answers:os...

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

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python - From ND to 1D arrays

Say I have an array a: a = np.array([[1,2,3], [4,5,6]]) array([[1, 2, 3], [4, ... -independent way of getting a column/row vector from an arbitrary ndarray? Question&Answers:os...

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

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336 views

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multithreading - How to synchronize a static variable among threads running different instances of a class in Java?

I know that using the synchronize keyword before a method brings synchronization to that object. That is, 2 ... now synchronized across instances of class Test? Question&Answers:os...

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

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351 views

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python - ImportError: No module named PIL

I use this command in the shell to install PIL: easy_install PIL then I run python and type this: import PIL. ... ve never had such problem, what do you think? Question&Answers:os...

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

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145 views

1 answer

python - How to link PyCharm with PySpark?

I'm new with apache spark and apparently I installed apache-spark with homebrew in my macbook: Last login: Fri Jan 8 ... / python/ RELEASE conf/ ec2/ lib/ sbin/ Question&Answers:os...

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

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206 views

1 answer

javascript - Start script missing error when running npm start

I'm receiving this error when trying to debug my node application using the npm start command. Error: ... FSReqWrap.oncomplete (evalmachine.<anonymous>:95:15) Question&Answers:os...

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

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161 views

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javascript - jQuery document.ready vs self calling anonymous function

What is the difference between these two. $(document).ready(function(){ ... }); (function(){ ... })(); ... the page or it is called whenever it is encountered? Question&Answers:os...

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

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346 views

1 answer

java - Different names of JSON property during serialization and deserialization

Is it possible: to have one field in class, but different names for it during serialization/ ... .exc.UnrecognizedPropertyException: Unrecognized field "red" Question&Answers:os...

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

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141 views

1 answer

windows - How to check if directory exists in %PATH%?

How does one check if a directory is already present in the PATH environment variable? Here's a start. All I've managed to ... IN ("%PATH%") DO ( @ECHO %%~P ) Question&Answers:os...

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

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192 views

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apache - Execute root commands via PHP

I have a CentOS 5.7 linux server and use php5.3.x. On a pfSense system, you can restart services-that ... remove `/var/lock/subsys/vsftpd': Permission denied" Question&Answers:os...

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

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296 views

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python - Getting MAC Address

I need a cross platform method of determining the MAC address of a computer at run time. For windows the ' ... more elegant methods then those I listed above? Question&Answers:os...

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

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142 views

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java - Android download binary file problems

I am having problems downloading a binary file (video) in my app from the internet. In Quicktime, If I download it directly ... { f.write(buffer); } f.close(); Question&Answers:os...

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

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87 views

1 answer

javascript - How to count certain elements in array?

I have an array: [1, 2, 3, 5, 2, 8, 9, 2] I would like to know how many 2s are in the ... elegant way to do it in JavaScript without looping with for loop? Question&Answers:os...

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

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155 views

1 answer

html - How do I get the information from a meta tag with JavaScript?

The information I need is in a meta tag. How can I access the "content" data of the meta tag when property=" ... " content="http://video.com/video33353.mp4" /> Question&Answers:os...

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

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297 views

1 answer

How to convert integer timestamp to Python datetime

I have a data file containing timestamps like "1331856000000". Unfortunately, I don't have a lot of documentation ... do I convert this number to a datetime? Question&Answers:os...

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

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