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Regular expression for a hexadecimal number?
How do I create a regular expression that detects hexadecimal numbers in a text?
11 Answers
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Python: How to create a unique file name?
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I think uuid.uuid4().hex would be a better choice, see detail here.
– Grey Li
Jul 9 '17 at 1:55
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服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的Web Server，会存在大量的TIME_WAIT状态，假如server一秒钟接收1000个请求，那么就会积压 240*1000=240，000个 TIME_WAIT的记录，维护这些状态给Server带来负担。当然现代操作系统都会用快速的查找算法来管理这些 TIME_WAIT，所以对于新的 ...
Change text color based on brightness of the covered background area?
...article to determine a suitable foreground color:
function getContrastYIQ(hexcolor){
hexcolor = hexcolor.replace("#", "");
var r = parseInt(hexcolor.substr(0,2),16);
var g = parseInt(hexcolor.substr(2,2),16);
var b = parseInt(hexcolor.substr(4,2),16);
var yiq = ((r*299)+(g*587)+...
What type of hash does WordPress use?
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thanks but i thought md5 hashes had to be in hex, like this: b1946ac92492d2347c6235b4d2611184 why does this hash have chars A-Z and . in it? is it a md5 hash?
– Amanda Kumar
Jun 25 '09 at 21:00
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Is there a C++ decompiler? [closed]
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You can use IDA Pro by Hex-Rays. You will usually not get good C++ out of a binary unless you compiled in debugging information. Prepare to spend a lot of manual labor reversing the code.
If you didn't strip the binaries there is some hope as IDA ...
Good Hash Function for Strings
...failed. You can use this function to do that.
private static final char[] hex = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
public static String byteArray2Hex(byte[] bytes) {
StringBuffer sb = new StringBuffer(bytes.length * 2);
for(final byte b : by...
Getting a File's MD5 Checksum in Java
....zip"))) {
String md5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(is);
}
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Importing variables from another file?
...orrect. Actually, you can print the memory address for the variables print(hex(id(libvar)) and you can see the addresses are different.
# mylib.py
libvar = None
def lib_method():
global libvar
print(hex(id(libvar)))
# myapp.py
from mylib import libvar, lib_method
import mylib
lib_method()...
How can I get the sha1 hash of a string in node.js?
...var shasum = crypto.createHash('sha1')
shasum.update('foo')
shasum.digest('hex') // => "0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33"
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