大约有 45,000 项符合查询结果（耗时：0.0389秒） [XML]
What is Cache-Control: private?
...te proxy, then all 67198 users hitting the same page in the same 15-second window will all get the same contents - all served from close cache. Performance win for everyone.
The virtue of adding Cache-Control: max-age is that the browser doesn't even have to perform a conditional request.
if you ...
Performance of Java matrix math libraries? [closed]
... jar" with ATLAS and JNI libraries for Windows, Linux, Mac OS X, 32 and 64 bit (except for Windows). This way you will get the native performance just by adding the jar file to your classpath. Check it out at http://jblas.org!
...
user authentication libraries for node.js?
... man, this is exactly what I was looking for. connect-auth was giving me a bit of indigestion. I just logged into my app for the first time. thanks so much.
– Andy Ray
Jun 17 '11 at 5:35
...
How to set Java environment path in Ubuntu
...uration.
– Ryan Augustine
Jan 17 at 10:46
...
Excel “External table is not in the expected format.”
...uld use OFFICE12, Access 2010 - OFFICE14 and Access
2013 - OFFICE15
(OS: 64bit Office: 64bit) or (OS: 32bit Office: 32bit)
Key: HKCR\CLSID{3BE786A0-0366-4F5C-9434-25CF162E475E}\InprocServer32\
Value Name: (Default)
Value Data: C:\Program Files\Common Files\Microsoft
Shared\OFFICE14\ACEOLEDB.DLL
(OS:...
Convert unix time to readable date in pandas dataframe
...(1), int64(1)
In [23]: df.head()
Out[23]:
date price
0 1349720105 12.08
1 1349806505 12.35
2 1349892905 12.15
3 1349979305 12.19
4 1350065705 12.15
In [25]: df['date'] = pd.to_datetime(df['date'],unit='s')
In [26]: df.head()
Out[26]:
date price
0 2012-10-08 ...
How to manually create icns files using iconutil?
...with the OS versions that don't use ICNS files... No love for us who use OS10.6.8 V1.1... it's an even worse 'our way or the highway' for the devs than the users.
– Henrik Erlandsson
Sep 7 '12 at 12:19
...
NodeJS: Saving a base64-encoded image to disk
...
I think you are converting the data a bit more than you need to. Once you create the buffer with the proper encoding, you just need to write the buffer to the file.
var base64Data = req.rawBody.replace(/^data:image\/png;base64,/, "");
require("fs").writeFile("o...
How can I extract a good quality JPEG image from a video file with ffmpeg?
...quality.
The scale is linear with double the qscale being roughly half the bitrate.
Recommend trying values of 2-5.
You can use a value of 1 but you must add the -qmin 1 output option (because the default is -qmin 2).
To output a series of images:
ffmpeg -i input.mp4 -qscale:v 2 output_%03d.jpg
Se...
libpng warning: iCCP: known incorrect sRGB profile
... ancillary chunks except tRNS and gAMA
-reduce does lossless color-type or bit-depth reduction
In the console output you should see Removed the sRGB chunk, and possibly more messages about chunk removals. You will end up with a smaller, optimized PNG file. As the command will overwrite the origina...