大约有 43,000 项符合查询结果（耗时：0.0527秒） [XML]
When would I use Task.Yield()?
...od that requires some "long running" initialization, ie:
private async void button_Click(object sender, EventArgs e)
{
await Task.Yield(); // Make us async right away
var data = ExecuteFooOnUIThread(); // This will run on the UI thread at some point later
await UseDataAsync(da...
Authenticating in PHP using LDAP through Active Directory
...henticate users through LDAP with PHP (with Active Directory being the provider). Ideally, it should be able to run on IIS 7 ( adLDAP does it on Apache). Anyone had done anything similar, with success?
...
Do you have to put Task.Run in a method to make it async?
...essions). async methods may return Task, Task<T>, or (if you must) void.
Any type that follows a certain pattern can be awaitable. The most common awaitable types are Task and Task<T>.
So, if we reformulate your question to "how can I run an operation on a background thread in a way th...
All falsey values in JavaScript
...= false.
This is one of the reasons why many developers and many style guides (e.g. standardjs) prefer === and almost never use ==.
Truthy values that actually == false
"Truthy" simply means that JavaScript's internal ToBoolean function returns true. A quirk of Javascript to be aware of (and ...
What are the advantages of NumPy over regular Python lists?
... of vector and matrix operations for free, which sometimes allow one to avoid unnecessary work. And they are also efficiently implemented.
For example, you could read your cube directly from a file into an array:
x = numpy.fromfile(file=open("data"), dtype=float).reshape((100, 100, 100))
Sum alo...
Is it considered acceptable to not call Dispose() on a TPL Task object?
...: to free up unmanaged resources in a timely, deterministic way, and to avoid the cost of running the object's finalizer. Neither of these apply to Task most of the time:
As of .Net 4.5, the only time a Task allocates the internal wait handle (the only unmanaged resource in the Task object) is whe...
How do I build a numpy array from a generator?
...n intermediate list :
my_array = numpy.array(list(gimme()))
can make two identical generators, run through the first one to find the total length, initialize the array, and then run through the generator again to find each element:
length = sum(1 for el in gimme())
my_array = numpy.empty(length)
...
How to use WinForms progress bar?
...see how to report progress back to the UI thread.
For example:
private void Calculate(int i)
{
double pow = Math.Pow(i, i);
}
private void button1_Click(object sender, EventArgs e)
{
progressBar1.Maximum = 100;
progressBar1.Step = 1;
progressBar1.Value = 0;
backgroundWorker.Ru...
Frequency table for a single variable
...
The answer provided by @DSM is simple and straightforward, but I thought I'd add my own input to this question. If you look at the code for pandas.value_counts, you'll see that there is a lot going on.
If you need to calculate the frequenc...
Using CookieContainer with WebClient class
...
Yes. IMHO, overriding GetWebRequest() is the best solution to WebClient's limited functionalty. Before I knew about this option, I wrote lots of really painful code at the HttpWebRequest layer because WebClient almost, but not quite, did w...