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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...
...。FAT表中记录了每个簇的使用状况。 如果记录数值 是 100 则说明某个文件用到了簇号为100的簇，记录数值为500则说明用到了簇号为500的簇，以此类推。簇号为0和1的簇在数据区域没有使用，但是在FAT表中有它们的定义。在 FAT12,...
Fastest way to serialize and deserialize .NET objects
...
static void Main(string[] args)
{
var count = 100000;
var rnd = new Random(DateTime.UtcNow.GetHashCode());
Console.WriteLine("Generating {0} arrays of data...", count);
var arrays = new List<int[]>();
for (int i = 0; ...
Input and output numpy arrays to h5py
... import numpy as np
In [2]: import h5py
In [3]: a = np.random.random(size=(100,20))
In [4]: h5f = h5py.File('data.h5', 'w')
In [5]: h5f.create_dataset('dataset_1', data=a)
Out[5]: <HDF5 dataset "dataset_1": shape (100, 20), type "<f8">
In [6]: h5f.close()
You can then load that data back...
Is it possible to register a http+domain-based URL Scheme for iPhone apps, like YouTube and Maps?
...r both Android and iOS. I found if I change the timeout value from 500 to 100 I don't get the "Cannot open page" popup dialog in iOS. I also found that the timeout needs to be 50 for Android
– Rossini
Jan 18 '12 at 14:56
...
How to show and update echo on same line
...at you can run to understand its behaviour:
#!/bin/bash
for pc in $(seq 1 100); do
echo -ne "$pc%\033[0K\r"
sleep 1
done
echo
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Get selected option from select element
...">
<option value="10">10</option>
<option value="100">100</option>
<option value="1000">1000</option>
<option value="10000">10000</option>
</select>
To capture via jQuery you can do something like so:
$('#cycles_list').cha...
Hash and salt passwords in C#
...*
* Version 3:
* PBKDF2 with HMAC-SHA256, 128-bit salt, 256-bit subkey, 10000 iterations.
* Format: { 0x01, prf (UInt32), iter count (UInt32), salt length (UInt32), salt, subkey }
* (All UInt32s are stored big-endian.)
*/
public string HashPassword(string password)
{
var prf = KeyDerivati...
Array.sort() doesn't sort numbers correctly [duplicate]
...arch. If you want a numerical sort, try something like this:
var a = [ 1, 100, 50, 2, 5];
a.sort(function(a,b) { return a - b; });
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DateTime2 vs DateTime in SQL Server
... is limited to 3 1/3 milliseconds, while DATETIME2 can be accurate down to 100ns.
Both types map to System.DateTime in .NET - no difference there.
If you have the choice, I would recommend using DATETIME2 whenever possible. I don't see any benefits using DATETIME (except for backward compatibility...
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...
...。FAT表中记录了每个簇的使用状况。 如果记录数值 是 100 则说明某个文件用到了簇号为100的簇，记录数值为500则说明用到了簇号为500的簇，以此类推。簇号为0和1的簇在数据区域没有使用，但是在FAT表中有它们的定义。在 FAT12,...