大约有 25,300 项符合查询结果（耗时：0.0454秒） [XML]
Where do alpha testers download Google Play Android apps?
...
You need to publish the app before it becomes available for testing.
if you publish the app and the apk is only in "alpha testing" section
then it is NOT available to general public, only for activated testers in the alpha section.
EDIT:
One additional note: "norm...
What is your favorite C programming trick? [closed]
For example, I recently came across this in the linux kernel:
37 Answers
37
...
PHP - Extracting a property from an array of objects
...
add a comment
|
157
...
What is JavaScript's highest integer value that a number can go to without losing precision?
...= -x
log(x == x + 1) // true !
log(y == y - 1) // also true !
// Arithmetic operators work, but bitwise/shifts only operate on int32:
log(x / 2) // 4503599627370496
log(x >> 1) // 0
log(x | 1) // 1
Technical note on the subject of the number 9,007,199,254,740,992...
Simple way to calculate median with MySQL
What's the simplest (and hopefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for finding the mean, but I'm having a hard time finding a simple way of calculating the median. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but ...
Truncate all tables in a MySQL database in one command?
...
Drop (i.e. remove tables)
mysql -Nse 'show tables' DATABASE_NAME | while read table; do mysql -e "drop table $table" DATABASE_NAME; done
Truncate (i.e. empty tables)
mysql -Nse 'show tables' DATABASE_NAME | while read table; do mysql -e "truncate table $table" DATABASE_NAME; done
...
What is a singleton in C#?
...o said instance. The singleton premise is a pattern across software development.
There is a C# implementation "Implementing the Singleton Pattern in C#" covering most of what you need to know - including some good advice regarding thread safety.
To be honest, It's very rare that you need to implem...
Adding Xcode Workspace Schemes to Version Control
I'd like to share Workspace Schemes that I've created with the other team members. However they are all stored under .xcodeproj > xcuserdata > .xcuserdatad > xcschemes. I've set xcuserdata folders to be ignore in SVN as I assumed all data in that folder were user specific.
...
Easy way to dismiss keyboard?
... non-guaranteed side effect from calling an API in a way that it's not documented to work.
– JosephH
Sep 14 '10 at 4:28
3
...
How to scale threads according to CPU cores?
...f processes available to the Java Virtual Machine by using the static Runtime method, availableProcessors. Once you have determined the number of processors available, create that number of threads and split up your work accordingly.
Update: To further clarify, a Thread is just an Object in Java, ...