大约有 40,000 项符合查询结果（耗时：0.0639秒） [XML]
Strings in a DataFrame, but dtype is object
...mly requested element. The key to overcoming this is to use pointers. Basically, store each string in some random memory location, and fill the array with the memory address of each string. (Memory addresses are just integers.) So now, things look like this
Now, if you ask your computer to fetch th...
Copy files from one directory into an existing directory
...
I really like this syntax, but for some reason it doesn't work with mv. Does anyone know why?
– Martin von Wittich
Sep 16 '13 at 11:18
...
The identity used to sign the executable is no longer valid
...
i had to delete all certificates/profiles manually and also refresh everything on the Apple developer portal and download them again, but it worked.
– benka
Oct 30 '13 at 15:36
...
Deleting Files using Git/GitHub
...
@KimPrince - According to kernel.org, "-A --all Like -u, but match <filepattern> against files in the working tree in addition to the index. That means that it will find new files as well as staging modified content and removing files that are no longer in the wo...
The developers of this app have not set up this app properly for Facebook Login?
...
the problem was you have to set
Do you want to make this app and all its live features available to the general public?
set status and review to ON and problem solved
enjoy coding
share
|
...
What programming practice that you once liked have you since changed your mind about? [closed]
As we program, we all develop practices and patterns that we use and rely on. However, over time, as our understanding, maturity, and even technology usage changes, we come to realize that some practices that we once thought were great are not (or no longer apply).
...
Same Navigation Drawer in different Activities
...Config);
drawerToggle.onConfigurationChanged(newConfig);
}
}
All the other Activities that needs to have a navigation drawer should extend this Activity instead of Activity itself, example:
public class AnyActivity extends BaseActivity
{
//Because this activity extends BaseActivit...
Salting Your Password: Best Practices?
...d you store. (This is quite a common misunderstanding.)
Use a cryptographically secure random number generator.
Choose a long enough salt. Think about the birthday problem.
There's an excellent answer by Dave Sherohman to another question why you should use randomly generated salts instead of a us...
Cross-browser custom styling for file upload button [duplicate]
...a file upload button to my personal preferences, but I couldn't find any really solid ways to do this without JS. I did find two other questions about this subject, but the answers there either involved JavaScript, or suggested Quirksmode's approach .
...
Can't push to GitHub because of large file which I already deleted
...mand changes the hashes of your commits which can be a real problem, especially on shared repositories. It should not be performed without understanding the consequences.
share
|
improve this answer...