大约有 23,000 项符合查询结果（耗时：0.0260秒） [XML]
Maximum number of records in a MySQL database table
What is the upper limit of records for MySQL database table. I'm wondering about autoincrement field. What would happen if I add milions of records? How to handle this kind of situations?
Thx!
...
How do you Encrypt and Decrypt a PHP String?
...Unless you're using an AEAD construct, ALWAYS encrypt then MAC!
bin2hex(), base64_encode(), etc. may leak information about your encryption keys via cache timing. Avoid them if possible.
Even if you follow the advice given here, a lot can go wrong with cryptography. Always have a cryptography exper...
Duplicate symbols for architecture x86_64 under Xcode
...or it despite i guess this is not the best solution - i wanted to create a base test class.
– Bruno Muniz
Aug 23 '17 at 10:13
...
Posting a File and Associated Data to a RESTful WebService preferably as JSON
...th metadata using a REST web service?
You basically have three choices:
Base64 encode the file, at the expense of increasing the data size by around 33%, and add processing overhead in both the server and the client for encoding/decoding.
Send the file first in a multipart/form-data POST, and ret...
What is the smallest possible valid PDF?
...
I needed a base64-representation of a PDF. So, if anyone is interested, here is the base64-string of the 138 bytes version: JVBERi0xLjAKMSAwIG9iajw8L1BhZ2VzIDIgMCBSPj5lbmRvYmogMiAwIG9iajw8L0tpZHNbMyAw\nIFJdL0NvdW50IDE+PmVuZG9iaiAzIDAgb2...
Download file from an ASP.NET Web API method using AngularJS
...below now tests for navigator.msSaveBlob separately. Thanks? Microsoft
// Based on an implementation here: web.student.tuwien.ac.at/~e0427417/jsdownload.html
$scope.downloadFile = function(httpPath) {
// Use an arraybuffer
$http.get(httpPath, { responseType: 'arraybuffer' })
.success( f...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...sh:~ mackie$ clang -v
Apple clang version 3.0 (tags/Apple/clang-211.10.1) (based on LLVM 3.0svn)
Target: x86_64-apple-darwin11.2.0
Thread model: posix
The inner loop of clang's code looks like this:
.align 4, 0x90
LBB2_4: ## =>This Inner Loop Header: De...
Is there a faster/shorter way to initialize variables in a Rust struct?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Convert SVG to image (JPEG, PNG, etc.) in the browser
...s");
var img = canvas.toDataURL("image/png");
// do what you want with the base64, write to screen, post to server, etc...
});
share
|
improve this answer
|
follow
...
How do I install Python OpenCV through Conda?
...nCV 3.x - mainly because this is how the OpenCV-Python Tutorials are setup/based on.
In my case, I've extracted the package (essentially a folder) straight to my C drive (C:\opencv).
Copy and Paste the cv2.pyd file
The Anaconda Site-packages directory (e.g. C:\Users\Johnny\Anaconda\Lib\site-packa...