大约有 47,000 项符合查询结果（耗时：0.0674秒） [XML]
What's the difference between [ and [[ in Bash? [duplicate]
I looked at bash man page and the [[ says it uses Conditional Expressions. Then I looked at Conditional Expressions section and it lists the same operators as test (and [ ).
...
Modulus % in Django template
...oint to mark this answer as the correct one. because it focuses on modulor and not a workaround...
– underdoeg
Dec 13 '11 at 19:02
...
How to access java-classes in the default-package?
..., some post-processing is needed to move the file into a dedicated package and add this "package" directive at its beginning.
Update 2014: bug 6975015, for JDK7 and JDK8, describe an even stricter prohibition against import from unnamed package.
The TypeName must be the canonical name of a class t...
How do I unlock a SQLite database?
...//www.nirsoft.net/utils/opened_files_view.html to find out the process is handling db file. Try closed that program for unlock database
In Linux and macOS you can do something similar, for example, if your locked file is development.db:
$ fuser development.db
This command will show what proce...
Why do this() and super() have to be the first statement in a constructor?
...ct those args inline as you are doing, or pass them in to your constructor and then pass them to super:
public MySubClassB extends MyClass {
public MySubClassB(Object[] myArray) {
super(myArray);
}
}
If the compiler did not enforce this you could do this:
public M...
What does the Ellipsis object do?
...nterpretation is purely up to whatever implements the __getitem__ function and sees Ellipsis objects there, but its main (and intended) use is in the numpy third-party library, which adds a multidimensional array type. Since there are more than one dimensions, slicing becomes more complex than just...
Using CSS for a fade-in effect on page load
... text-align: center;
-webkit-animation: fadein 2s; /* Safari, Chrome and Opera > 12.1 */
-moz-animation: fadein 2s; /* Firefox < 16 */
-ms-animation: fadein 2s; /* Internet Explorer */
-o-animation: fadein 2s; /* Opera < 12.1 */
animation: fadein 2s...
Git Gui: Perpetually getting “This repository currently has approximately 320 loose objects.”
...sible performance issue to you. This should be fixable by running this command from the command line:
cd path/to/your/git/repo
git gc --aggressive
From the output of git help gc:
Runs a number of housekeeping tasks within the current repository, such as compressing file revisions (to reduce disk s...
How to map calculated properties with JPA and Hibernate
...he database with a COUNT() function operating on the join of my Java bean and its children. It would be even better if this property could be calculated on demand / "lazily", but this is not mandatory.
...
How do I make Git ignore file mode (chmod) changes?
...bit on. git-clone(1)
or git-init(1) probe the filesystem to see if it handles the
executable bit correctly and this variable is automatically
set as necessary.
A repository, however, may be on a filesystem that handles
the filemode correctly, and this variable is set to true wh...