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30岁之后，程序员该向什么方向发展？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...理上有兴趣，又有这样的机会，就放心大胆去做，大不了失败了回头再做coding；如果你想做技术大牛，没问题，相信自己一定能做得到。最怕自己不知道自己要做什么，没有职业规则，对自己的前途一片迷茫。
QA&4. 开源是否可...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
... 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.
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What's the difference between a single precision and double precision floating point operation?
...antissa will always be in the form
0.α1α2...αt × βp
where β is the base of representation. But since the fraction is a binary number, α1 will always be equal to 1, thus the fraction can be rewritten as 1.α2α3...αt+1 × 2p and the initial 1 can be implicitly assumed, making room for an ex...
ASP.NET MVC on IIS 7.5
...
This was my problem too. I never would have guessed based on the 403 symptom that my application was missing the Global.asax
– Saul Dolgin
Jun 28 '13 at 13:09
...
How to JSON serialize sets?
...de disappeared
updated the call to the parents' default with super()
using base64 to serialize the bytes type into str (because it seems that bytes in python 3 can't be converted to JSON)
from decimal import Decimal
from base64 import b64encode, b64decode
from json import dumps, loads, JSONEncoder...
Position icons into circle
...e ON the circle */
- let tan = Math.tan(Math.PI/m); /* tangent of half the base angle */
.container(style=`--m: ${m}; --tan: ${+tan.toFixed(2)}`)
- for(let i = 0; i < n_imgs; i++)
a(href='#' style=i - has_mid >= 0 ? `--i: ${i}` : null)
img(src=imgs[i].src alt=imgs[i].alt...
convert UIImage to NSData
...{
UIImage *snapshot = self.myImageView.image;
[self encodeImageToBase64String:snapshot];
}
call this method for image convert in base 64
-(NSString *)encodeImageToBase64String:(UIImage *)image
{
return [UIImagePNGRepresentation(image) base64EncodedStringWithOptions:N...
I need to securely store a username and password in Python, what are my options?
...s
from pbkdf2 import PBKDF2
from Crypto.Cipher import AES
import os
import base64
import pickle
### Settings ###
saltSeed = 'mkhgts465wef4fwtdd' # MAKE THIS YOUR OWN RANDOM STRING
PASSPHRASE_FILE = './secret.p'
SECRETSDB_FILE = './secrets'
PASSPHRASE_SIZE = 64 # 512-bit passphrase
KEY_SIZE = 32 ...
Smallest data URI image possible for a transparent image
...ds (in some browsers).
Shorter (but unstable - 74 bytes)
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
I would advise using the slightly longer and more stable version as follows:
⇊ Stable ⇊ (but slightly longer - 78 bytes)
data:image/gif;base64,R0lGODlhAQABAI...
List of Delphi language features and version in which they were introduced/deprecated
...form (but without additional text for deprecated)
Variant is no longer based on COM but changed to be CLX compatible, COM based variant renamed to OLEVariant
Typed constants cannot be assigned to (Override with {$J+})
Enumerated types can be assigned an explicit value (cf C++);
Interface pr...