大约有 3,300 项符合查询结果（耗时：0.0105秒） [XML]
Determine installed PowerShell version
...If the variable does not exist, it is safe to assume the engine is version 1.0.
Note that $Host.Version and (Get-Host).Version are not reliable - they reflect
the version of the host only, not the engine. PowerGUI,
PowerShellPLUS, etc. are all hosting applications, and
they will set the host's vers...
What's the difference between “mod” and “remainder”?
...loating-point remainder of x/y. C11dr §7.12.10.1 2
fmod( 7, 3) --> 1.0
fmod( 7, -3) --> 1.0
fmod(-7, 3) --> -1.0
fmod(-7, -3) --> -1.0
Disambiguation: C also has a similar named function double modf(double value, double *iptr) which breaks the argument value into integr...
UIView bottom border?
...ottomBorder.frame = CGRectMake(0.0f, 43.0f, toScrollView.frame.size.width, 1.0f);
bottomBorder.backgroundColor = [UIColor colorWithWhite:0.8f
alpha:1.0f].CGColor;
[toScrollView.layer addSublayer:bottomBorder];
...
Performance optimization strategies of last resort [closed]
... of optimizations until its wall-clock time was reduced from 48 seconds to 1.1 seconds, and the source code size was reduced by a factor of 4. My diagnostic tool was this. The sequence of changes was this:
The first problem found was use of list clusters (now called "iterators" and "container clas...
Running script upon login mac [closed]
...OSX El Capitan and newer (credit to José Messias Jr):
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<...
Yii2 data provider default sorting
In Yii 1.1 this code works for default sorting:
8 Answers
8
...
'Operation is not valid due to the current state of the object' error during postback
...
For ASP.NET 1.1, this is still due to someone posting more than 1000 form fields, but the setting must be changed in the registry rather than a config file. It should be added as a DWORD named MaxHttpCollectionKeys in the registry under ...
How to change the text on the action bar
...m-text, then the following code works for me:
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
t...
Can anyone explain this strange behavior with signed floats in C#?
...overloaded Equals methods don't even define an equivalence relation!, e.g. 1.0f.Equals(1.0) yields false, but 1.0.Equals(1.0f) yields true!) The real problem IMHO is not with the way structures are compared...
– supercat
Dec 13 '12 at 0:01
...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...er #1 (you'll see why), so we have:
var a = 0; // 1
let a = 0; // 1.1 (new with ES2015)
const a = 0; // 1.2 (new with ES2015)
a = 0; // 2
window.a = 0; // 3
this.a = 0; // 4
Those statements explained
#1 var a = 0;
This creates a global variable which is also a property of...