大约有 44,000 项符合查询结果（耗时：0.0674秒） [XML]
CSS Selector that applies to elements with two classes
...sed on the value of the class attribute being set to two specific classes. For example, let's say I have 3 divs:
1 Answer
...
Unix shell script to truncate a large file
...a no-op in bash (POSIX-compliant), so this essentially just opens the file for writing (which of course truncates the file) and then immediately closes it.
EDIT: as shellter commented, you don't actually need a command to go along with the redirection:
$ echo foo > foo.txt
$ cat foo.txt
foo
$ &...
How do I clone a GitHub wiki?
...
The syntax for cloning Github wiki repository is:
git clone [RepositoryName].wiki.git
If it's a private repository, then you'll prompted to enter your username/password.
...
generating GUID without hyphen
...
Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
Java FileReader encoding issue
...xt" file.
The one-arguments constructors of FileReader always use the platform default encoding which is generally a bad idea.
Since Java 11 FileReader has also gained constructors that accept an encoding: new FileReader(file, charset) and new FileReader(fileName, charset).
In earlier versions of...
How to iterate through a DataTable
...();
SqlDataAdapter adapter = new SqlDataAdapter(cmd);
adapter.Fill(dt);
foreach(DataRow row in dt.Rows)
{
TextBox1.Text = row["ImagePath"].ToString();
}
...assumes the connection is open and the command is set up properly. I also didn't check the syntax, but it should give you the idea.
...
Where does this come from: -*- coding: utf-8 -*-
...
Thanks for the pep link. I was formerly under the impression that the directive was only used by the text editor. Until now, I never knew that the python interpreter actually parsed the comment if it is present on the first two li...
entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
...
Your service classes look a bit like repositories which are responsible for only a single entity type. In such a case you will always have trouble as soon as relationships between entities are involved when you use separate contexts for the services.
You can also create a single service which is...
What is the meaning of CTOR?
...
It's just shorthand for "constructor" - and it's what the constructor is called in IL, too. For example, open up Reflector and look at a type and you'll see members called .ctor for the various constructors.
...
How to convert integer timestamp to Python datetime
I have a data file containing timestamps like "1331856000000". Unfortunately, I don't have a lot of documentation for the format, so I'm not sure how the timestamp is formatted. I've tried Python's standard datetime.fromordinal() and datetime.fromtimestamp() and a few others, but nothing matches...