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android - adb server version doesn't match this client

Whenever I try to run adb devices: $ adb devices * daemon not running. ... android.media.AudioManager@476ddee0com.htc.music.MediaPlaybackService$5@476dd838 Question&Answers:os...

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

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385 views

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python - django MultiValueDictKeyError error, how do I deal with it

I'm trying to save a object to my database, but it's throwing a MultiValueDictKeyError error. The problems ... line is is_private = request.POST['is_private'] Question&Answers:os...

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

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106 views

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html - Responsive grid of hexagons

I loaded in multiple images on my website from the internet. Is it possible to give all those images an hexagon ... I tried this: http://jsfiddle.net/8f5m5wv0/ Question&Answers:os...

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

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Illegal pattern character 'T' when parsing a date string to java.util.Date

I have a date string and I want to parse it to normal date use the java Date API,the following is my code: public ... dd'T'hh:mm:ssZ"; It also does not work. Question&Answers:os...

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

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Nested function in C

Can we have a nested function in C? What is the use of nested functions? If they exist in C does their implementation differ from compiler to compiler? Question&Answers:os...

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

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235 views

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unix - How to use variables in a command in sed?

I have abc.sh: exec $ROOT/Subsystem/xyz.sh On a Unix box, if I print echo $HOME then I get /HOME/COM/ ... /HOME/COM/FILE/Subsystem/xyz.sh $ROOT/ystem/xyz1.sh Question&Answers:os...

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

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html - Is it wrong to change a block element to inline with CSS if it contains another block element?

I know it's wrong to put a block element inside an inline element, but what about the following? Imagine this valid ... a large block of HTML to be a link. Question&Answers:os...

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

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285 views

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c - Strange behaviour of the pow function

While running the following lines of code: int i,a; for(i=0;i<=4;i++) { a=pow(10,i); printf("%d",a); ... value of a comes out to be 100. How is that possible? Question&Answers:os...

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

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python - raw_input without pressing enter

I'm using raw_input in Python to interact with user in shell. c = raw_input('Press s or n to continue:') if ... enter in the shell? I'm using *nixes machines. Question&Answers:os...

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

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c# - HRESULT: 0x800A03EC on Worksheet.range

I am getting HRESULT: 0x800A03EC on Worksheet.range method. Number of rows are more than 70K. Office 2007. Code: ... only when row count goes more than 65530. Question&Answers:os...

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

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debugging - What is private bytes, virtual bytes, working set?

I am trying to use the perfmon windows utility to debug memory leaks in a process. This is how perfmon explains ... give a better idea of the memory usage? Question&Answers:os...

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

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Python: Find in list

I have come across this: item = someSortOfSelection() if item in myList: doMySpecialFunction(item) but sometimes it does not ... item in a list: if x in l:? Question&Answers:os...

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

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133 views

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c# - What are the pros and cons to keeping SQL in Stored Procs versus Code

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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489 views

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How to prevent favicon.ico requests?

I don't have a favicon.ico, but my browser always makes a request for it. Is it possible to prevent the ... site? Maybe some META-TAG in the HTML header? Question&Answers:os...

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

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355 views

1 answer

node.js - Is there a way to make npm install (the command) to work behind proxy?

Read about a proxy variable in a .npmrc file but it does not work. Trying to avoid manually downloading all require packages and installing. Question&Answers:os...

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

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290 views

1 answer

The remote end hung up unexpectedly while git cloning

My git client repeatedly fails with the following error after trying to clone the repository for some time. What ... fatal: The remote end hung up unexpectedly Question&Answers:os...

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

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165 views

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c++ - What is memory fragmentation?

I've heard the term "memory fragmentation" used a few times in the context of C++ dynamic memory allocation. ... be dealt with in an STL-heavy application? Question&Answers:os...

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

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289 views

1 answer

sql server - How do I create a unique constraint that also allows nulls?

I want to have a unique constraint on a column which I am going to populate with GUIDs. However, my ... while still checking for uniqueness on actual data? Question&Answers:os...

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

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290 views

1 answer

Get screen width and height in Android

How can I get the screen width and height and use this value in: @Override protected void onMeasure(int widthSpecId, ... findViewById(R.id.flag).getHeight()); } Question&Answers:os...

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

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365 views

1 answer

networking - Communication between multiple docker-compose projects

I have two separate docker-compose.yml files in two different folders: ~/front/docker-compose.yml ~/ ... docker-compose projects communicate with each other? Question&Answers:os...

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

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266 views

1 answer

css - Center content in responsive bootstrap navbar

I'm having trouble centering my content in the bootstrap navbar. I'm using bootstrap 3. I've read many posts, ... /body> </html> https://jsfiddle.net/amk07fb3/ Question&Answers:os...

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

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98 views

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android - Removing an activity from the history stack

My app shows a signup activity the first time the user runs the app, looks like: ActivitySplashScreen (welcome to ... to see if there was simpler method, Thanks Question&Answers:os...

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

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500 views

1 answer

cygwin - How to install MinGW-w64 and MSYS2?

I am trying to build some open source library. I need package management system to easily download the ... like Cygwin can download many different packges. Question&Answers:os...

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

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192 views

1 answer

asp.net - How do I import a namespace in Razor View Page?

How to import a namespace in Razor View Page? Question&Answers:os...

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

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300 views

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tooltip - Show data on mouseover of circle

I have a set of data that I am plotting in a scatter. When I mouseover one of the circles I would like ... to be more informative about what data to enter? Question&Answers:os...

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

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371 views

1 answer

javascript - How to check if a specific pixel of an image is transparent?

Is there any way to check if a selected (x,y) point of a PNG image is transparent? Question&Answers:os...

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

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79 views

1 answer

Finding C++ static initialization order problems

We've run into some problems with the static initialization order fiasco, and I'm looking for ways to comb through a ... is IBM XLC/C++ compiler running on AIX. Question&Answers:os...

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

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580 views

1 answer

javascript - Truncate number to two decimal places without rounding

Suppose I have a value of 15.7784514, I want to display it 15.77 with no rounding. var num = parseFloat(15. ... 15.778 15.7784514000 How do I display 15.77? Question&Answers:os...

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

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