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获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
...有几个。下面的代码执行了这个任务：
RemovableDeviceInfo_vt Functions::SearchRemovalDisks()
{
RemovableDeviceInfo_vt devInfos; //result
/*GUID_DEVCLASS_DISKDRIVE*/
CONST CLSID CLSID_DeviceInstance = { 0x4D36E967, 0xE325, 0x11CE, { 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe...
What is the easiest way to remove the first character from a string?
... fastest and most readable way of doing things:
require 'benchmark'
N = 1_000_000
puts RUBY_VERSION
STR = "[12,23,987,43"
Benchmark.bm(7) do |b|
b.report('[0]') { N.times { "[12,23,987,43"[0] = '' } }
b.report('sub') { N.times { "[12,23,987,43".sub(/^\[+/, "") } }
b.report('gsub') { N.ti...
Can dplyr package be used for conditional mutating?
... ifelse(a == 0 | a == 1 | a == 4 | a == 3 | c == 4, 3, NA)))
Added - if_else: Note that in dplyr 0.5 there is an if_else function defined so an alternative would be to replace ifelse with if_else; however, note that since if_else is stricter than ifelse (both legs of the condition must have the ...
How to enable cURL in PHP / XAMPP
...
Since you're using XAMPP, uncomment the line
;extension=php_curl.dll
in xampp\apache\bin\php.ini, and then restart the Apache service.
NB: In newer XAMPP versions, PHP has moved to root xampp folder xampp\php\php.ini.
...
Mocking Extension Methods with Moq
... DoWorkMethod
{
[ExcludeFromCodeCoverage]
get { return _DoWorkMethod ?? (_DoWorkMethod = (obj, val) => { return obj.DoWork(val); }); }
set { _DoWorkMethod = value; }
} private Func<IMyObject, string, object> _DoWorkMethod;
Then you call the Func instead of ...
iOS 7 - Status bar overlaps the view
...patibility.
NSUInteger DeviceSystemMajorVersion() {
static NSUInteger _deviceSystemMajorVersion = -1;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
NSString *systemVersion = [UIDevice currentDevice].systemVersion;
_deviceSystemMajorVersion = [[syste...
Getting LaTeX into R Plots
...t interferes with the ggplot ~ # tikzDecice combo
colnames(AR) <- c("$V_{BB}[V]$", "$V_{RB}[V]$" , "$V_{RC}[V]$" , "$I_B[\\mu A]$" , "IC" , "$V_{BE}[V]$" , "$V_{CE}[V]$" , "beta" , "$I_E[mA]$")
# make sure the working directory is where you want your tikz file to go
setwd("~/TexImageFolder/")
...
How to write to a file in Scala?
...re the main entry points into the Scala IO File API.
import scalax.io._
val output:Output = Resource.fromFile("someFile")
// Note: each write will open a new connection to file and
// each write is executed at the begining of the file,
// so in this case the last write will be th...
What is dynamic programming? [closed]
...e only the necessary partial results along the way:
def fibonacci(n):
fi_minus_2 = 0
fi_minus_1 = 1
for i in range(2, n + 1):
fi = fi_minus_1 + fi_minus_2
fi_minus_1, fi_minus_2 = fi, fi_minus_1
return fi
How apply dynamic programming?
Find the recursion in the problem.
T...
ExpressJS How to structure an application?
...ike to structure a medium-sized express.js application.
focusaurus/express_code_structure is the repo with the latest code for this. Pull requests welcome.
Here's a snapshot of the README since stackoverflow doesn't like just-a-link answers. I'll make some updates as this is a new project that I'l...