大约有 35,449 项符合查询结果（耗时：0.0542秒） [XML]
Check play state of AVPlayer
...t; duration]);
CMTime firstThird = CMTimeMakeWithSeconds(durationSeconds/3.0, 1);
CMTime secondThird = CMTimeMakeWithSeconds(durationSeconds*2.0/3.0, 1);
NSArray *times = [NSArray arrayWithObjects:[NSValue valueWithCMTime:firstThird], [NSValue valueWithCMTime:secondThird], nil];
self.playerObserver...
How to convert an Stream into a byte[] in C#? [duplicate]
...] ReadToEnd(System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
{
originalPosition = stream.Position;
stream.Position = 0;
}
try
{
byte[] readBuffer = new byte[4096];
int tot...
CSS z-index paradox flower
...tp://jsfiddle.net/Kx2k5/1/
(successfully tested on Fx27, Ch33, IE9, Sf5.1.10 and Op19)
CSS
.item {
/* include borders on width and height */
-webkit-box-sizing : border-box;
-moz-box-sizing : border-box;
box-sizing : border-box;
...
}
.i1:after {
content: "";
...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
...
Yes, MD5 is somewhat less CPU-intensive. On my Intel x86 (Core2 Quad Q6600, 2.4 GHz, using one core), I get this in 32-bit mode:
MD5 411
SHA-1 218
SHA-256 118
SHA-512 46
and this in 64-bit mode:
MD5 407
SHA-1 312
SHA-256 148
SHA-512 189
Figures are in megabytes ...
Xcode doesn't show the line that causes a crash
...
301
You should also ensure that you have breakpoints set for all exceptions. This will cause Xcode...
Get element inside element by class and ID - JavaScript
...r targetDiv = document.getElementById("foo").getElementsByClassName("bar")[0];
getElementById only returns one node, but getElementsByClassName returns a node list. Since there is only one element with that class name (as far as I can tell), you can just get the first one (that's what the [0] is ...
Parallel.ForEach vs Task.Factory.StartNew
...
305
The first is a much better option.
Parallel.ForEach, internally, uses a Partitioner<T> t...
Splitting String with delimiter
...
answered May 8 '13 at 21:50
tim_yatestim_yates
149k2222 gold badges302302 silver badges311311 bronze badges
...
Does use of final keyword in Java improve the performance?
... |
edited Nov 25 '10 at 17:35
answered Nov 25 '10 at 17:11
...
ruby convert array into function arguments
...
104
You can turn an Array into an argument list with the * (or "splat") operator:
a = [0, 1, 2, 3,...