大约有 45,000 项符合查询结果（耗时：0.0595秒） [XML]
What is more efficient? Using pow to square or just multiply it with itself?
...result of every pow calculation to make sure the compiler doesn't optimize it away.
If I use the std::pow(double, double) version, and loops = 1000000l, I get:
1 00:00:00.011339 00:00:00.011262
2 00:00:00.011259 00:00:00.011254
3 00:00:00.975658 00:00:00.011254
4 00:00:00.976427 00:00:00.011254...
How to connect to SQL Server database from JavaScript in the browser?
...ent javascript to access databases for several reasons (bad practice, security issues, etc) but if you really want to do this, here is an example:
var connection = new ActiveXObject("ADODB.Connection") ;
var connectionstring="Data Source=<server>;Initial Catalog=<catalog>;User ID=<u...
Django - How to rename a model field using South?
...e', 'name')
The first argument of db.rename_column is the table name, so it's important to remember how Django creates table names:
Django automatically derives the name of the database table from the name of your model class and the app that contains it. A model's database table name is const...
How to run .APK file on emulator [duplicate]
I download an APK file and I want to run it on an Android emulator but I don't know how. Please help me. Thanks!
4 Answer...
When are you truly forced to use UUID as part of the design?
I don't really see the point of UUID . I know the probability of a collision is effectively nil , but effectively nil is not even close to impossible.
...
What is the difference between '@' and '=' in directive scope in AngularJS?
... AngularJS documentation on the topic carefully, and then fiddled around with a directive. Here's the fiddle .
18 Answers...
What is the (best) way to manage permissions for Docker shared volumes?
I've been playing around with Docker for a while and keep on finding the same issue when dealing with persistent data.
13 A...
Check orientation on Android phone
How can I check if the Android phone is in Landscape or Portrait?
23 Answers
23
...
How do I run a Python program?
So I'm starting like Python a bit, but I'm having trouble erm...running it. Lol
10 Answers
...
How to flip background image using CSS?
How to flip any background image using CSS? Is it possible?
5 Answers
5
...