大约有 30,000 项符合查询结果（耗时：0.0279秒） [XML]
HTML5 Canvas Resize (Downscale) Image High Quality?
...h);
var tByteBuffer = imgRes.data;
// convert float32 array into a UInt8Clamped Array
var pxIndex = 0; //
for (sIndex = 0, tIndex = 0; pxIndex < tw * th; sIndex += 3, tIndex += 4, pxIndex++) {
tByteBuffer[tIndex] = Math.ceil(tBuffer[sIndex]);
tByteBuffer[tIndex +...
pytest: assert almost equal
...01):
return abs(x-y) < threshold
assert all(map(almost_equal, zip((1.32, 2.4), i_return_tuple_of_two_floats())
share
|
improve this answer
|
follow
|
...
Get file version in PowerShell
... That's actually not right. Look at get-item C:\Windows\System32\ubpm.dll | % VersionInfo | fl * -force and compare the FilePrivatePart to the last part of the FileVersion. The FileVersion shows what originally shipped, and not the patched version. This command, on the other hand, show...
How to make PDF file downloadable in HTML link?
...
TravisOTravisO
8,88833 gold badges3232 silver badges4444 bronze badges
2
...
MongoDB仿关系型数据库Group聚合例子 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...数据
Dictionary dic = new Dictionary();
dic["_userName"] = ""; // 与原字段名区分开
dic["_date"] = "";
dic["_data"] = "0";
MongoServer server = new MongoClient(MongoConnStr).GetServer();
MongoDatabase db = serve...
What is the copy-and-swap idiom?
...nclude <algorithm> // std::copy
#include <cstddef> // std::size_t
class dumb_array
{
public:
// (default) constructor
dumb_array(std::size_t size = 0)
: mSize(size),
mArray(mSize ? new int[mSize]() : nullptr)
{
}
// copy-constructor
dumb_array(...
Printing a variable memory address in swift
... var aString : String = "THIS IS A STRING"
NSLog("%p", aString.core._baseAddress) // _baseAddress is a COpaquePointer
// example printed address 0x100006db0
This prints the memory address of the string, if you open XCode -> Debug Workflow -> View Memory and go to the printed addre...
Matrix Transpose in Python
...g'), ('b', 'e', 'h'), ('c', 'f', 'i')]?
– acollection_
Feb 28 '16 at 3:15
14
...
Conversion failed when converting date and/or time from character string while inserting datetime
... |
edited Nov 2 '15 at 18:32
B. Clay Shannon
18.9k116116 gold badges368368 silver badges718718 bronze badges
...
Best way to select random rows PostgreSQL
...ery:
SELECT count(*) AS ct -- optional
, min(id) AS min_id
, max(id) AS max_id
, max(id) - min(id) AS id_span
FROM big;
The only possibly expensive part is the count(*) (for huge tables). Given above specifications, you don't need it. An estimate will do just fine,...