大约有 1,970 项符合查询结果(耗时:0.0304秒) [XML]
What is thread safe or non-thread safe in PHP?
... the Server API entry. This could say something like CGI/FastCGI or Apache 2.0 Handler.
If you also look at the command-line version of PHP -- thread safety does not matter.
Finally, if thread-safety doesn't matter so which version should you use -- the thread-safe or the non-thread-safe? Frankly,...
Best way to remove from NSMutableArray while iterating?
...e items to delete. Then I delete them. Here's a sample using Objective-C 2.0 syntax:
NSMutableArray *discardedItems = [NSMutableArray array];
for (SomeObjectClass *item in originalArrayOfItems) {
if ([item shouldBeDiscarded])
[discardedItems addObject:item];
}
[originalArrayOfItems ...
Does Typescript support the ?. operator? (And, what's it called?)
...ly:
Edit: I have updated the answer thanks to fracz comment.
TypeScript 2.0 released !. It's not the same as ?.(Safe Navigator in C#)
See this answer for more details:
https://stackoverflow.com/a/38875179/1057052
This will only tell the compiler that the value is not null or undefined. This wi...
Edit and Continue: “Changes are not allowed when…”
... many rough edges and it's better to not use MbUnit 3.0 but use the MbUnit 2.0 framework but use the gallio runner, that you are running without installing from the installer (which also installed a visual studio plugin).
Incidentally, I had the issue even after "disabling" he Gallio plugin. Only t...
How can I verify if a Windows Service is running
I have an application in C# (2.0 running on XP embedded) that is communicating with a 'watchdog' that is implemented as a Windows Service. When the device boots, this service typically takes some time to start. I'd like to check, from my code, if the service is running. How can I accomplish this?
...
SQL Server String or binary data would be truncated
...ssion or server level.
Note that for now, even in SQL Server 2019 CTP 2.0 the same trace flag 460 needs to be enabled. In a future SQL Server 2019 release, message 2628 will replace message 8152 by default.
SQL Server 2017 CU12 also supports this feature.
Improvement: Optional replacement ...
How to calculate the angle between a line and the horizontal axis?
...this function like this, and negative the Y coordinates:
Example in Swift 2.0
func angle_between_two_points(pa:CGPoint,pb:CGPoint)->Double{
let deltaY:Double = (Double(-pb.y) - Double(-pa.y))
let deltaX:Double = (Double(pb.x) - Double(pa.x))
var a = atan2(deltaY,deltaX)
while a ...
How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
...
SWIFT 2.0
simple:
let myString = "full text container"
let substring = myString[myString.startIndex..<myString.startIndex.advancedBy(3)] // prints: ful
SWIFT 3.0
let substring = myString[myString.startIndex..<myString.in...
What is the difference between int, Int16, Int32 and Int64?
...g should give you 0 and not -1
(I've tested this in all framework versions 2.0, 3.0, 3.5, 4.0)
C#:
Array.IndexOf(new Int16[]{1,2,3}, 1) = -1 (not correct)
Array.IndexOf(new Int32[]{1,2,3}, 1) = 0 (correct)
Array.IndexOf(new Int64[]{1,2,3}, 1) = 0 (correct)
VB.NET:
Array.IndexOf(new Int16(){1,2,...
How to do a scatter plot with empty circles in Python?
...
In matplotlib 2.0 there is a parameter called fillstyle
which allows better control on the way markers are filled.
In my case I have used it with errorbars but it works for markers in general
http://matplotlib.org/api/_as_gen/matplotlib.a...