大约有 8,441 项符合查询结果(耗时:0.0285秒) [XML]

https://stackoverflow.com/ques... 

What's the difference between SCSS and Sass?

...eact, Vue. Any tutorials or demos will generally use scss e.g create-react-app facebook.github.io/create-react-app/docs/… – Drenai Aug 11 '19 at 23:42 ...
https://stackoverflow.com/ques... 

How do I make a textbox that only accepts numbers?

I have a windows forms app with a textbox control that I want to only accept integer values. In the past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more g...
https://stackoverflow.com/ques... 

Linq: GroupBy, Sum and Count

...t "result with sample data" is coming from, but the problem in the console app is that you're using SelectMany to look at each item in each group. I think you just want: List<ResultLine> result = Lines .GroupBy(l => l.ProductCode) .Select(cl => new ResultLine { ...
https://stackoverflow.com/ques... 

What is a StoryBoard ID and how can i use this?

... and present it above your current View Controller And if you are in your app delegate you could use UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle: nil]; Edit: Swift @IBAction func buttonPressed(sen...
https://stackoverflow.com/ques... 

Facebook Post Link Image

..._name - A human-readable name for your site, e.g., "IMDb". fb:admins or fb:app_id - A comma-separated list of either the Facebook IDs of page administrators or a Facebook Platform application ID. At a minimum, include only your own Facebook ID. More information on Open Graph tags and details on Ad...
https://stackoverflow.com/ques... 

PHP: Storing 'objects' inside the $_SESSION

...jump to another page I still have my object. Now before I start using this approach I would like to find out if it is really such a good idea or if there are potential pitfalls involved. ...
https://stackoverflow.com/ques... 

Can I run multiple programs in a Docker container?

I'm trying to wrap my head around Docker from the point of deploying an application which is intended to run on the users on desktop. My application is simply a flask web application and mongo database. Normally I would install both in a VM and, forward a host port to the guest web app. I'd like to ...
https://stackoverflow.com/ques... 

Why would anybody use C over C++? [closed]

... compiler isn't good at optimizing the kind of code you need to write Your app not only doesn't lend itself to be object oriented, but would be harder to write in that form In some cases, though, you might want to use C rather than C++: You want the performance of assembler without the trouble o...
https://stackoverflow.com/ques... 

Simple Log to File example for django 1.3+

... 'level': 'DEBUG', 'propagate': False, }, 'MYAPP': { 'handlers': ['console', 'logfile'], 'level': 'DEBUG', }, } } Now what does all of this mean? Formaters I like it to come out as the same style as ./manage.py runserver Handlers ...
https://stackoverflow.com/ques... 

Node.js client for a socket.io server

...); socket.emit('CH01', 'me', 'test msg'); Server Side : //server.js var app = require('express')(); var http = require('http').Server(app); var io = require('socket.io')(http); io.on('connection', function (socket){ console.log('connection'); socket.on('CH01', function (from, msg) { co...