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How to create a GUID/UUID in Python
...203add38')
>>> str(uuid.uuid4())
'f50ec0b7-f960-400d-91f0-c42a6d44e3d0'
>>> uuid.uuid4().hex
'9fe2c4e93f654fdbb24c02b15259716c'
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Odd behavior when Java converts int to byte?
...the equation, a7 is negative for byte but positive for int.
coef: a7 a6 a5 a4 a3 a2 a1 a0
Binary: 1 0 0 0 0 1 0 0
----------------------------------------------
int: 128 + 0 + 0 + 0 + 0 + 4 + 0 + 0 = 132
byte: -128 + 0 + 0 + 0 + 0 + 4 + 0 + 0 = -124
...
grep using a character vector with multiple patterns
...ed to not have the spaces in your regular expression. It should be "A1|A9|A6".
You also mention that there are lots of patterns. Assuming that they are in a vector
toMatch <- c("A1", "A9", "A6")
Then you can create your regular expression directly using paste and collapse = "|".
matches ...
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
...
晁振：
我可以很负责任地告诉大家前景非常广阔。
Q & A6、针对个人有什么方式方法提高自己学习能力呢？多看书、读书和交流么？
严清：
关于提高自己的学习能力，我觉得要么就是自己自制力很强，要么就是兴趣驱动。像...
What is a regular expression for a MAC Address?
... I don't think that this RegEx is correct as it also classifies '3D-F2-C9:A6-B3:4F' as a valid MAC Address, even though it is not correct. The correct one would be: ((([a-zA-z0-9]{2}[-:]){5}([a-zA-z0-9]{2}))|(([a-zA-z0-9]{2}:){5}([a-zA-z0-9]{2}))) So that every time you can choose ':' or '-' for t...
How can I reference a commit in an issue comment on GitHub?
... be broken down into parts
https://github.com/liufa/Tuplinator/commit/f36e3c5b3aba23a6c9cf7c01e7485028a23c3811
\_____/\________/ \_______________________________________/
| | |
Account name | ...
brew install mysql on macOS
... I have` [~/Library/LaunchAgents]$ ls com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist com.mysql.mysqld.plist com.facebook.videochat.ava.plist homebrew.mxcl.postgresql.plist` under ` ~/Library/LaunchAgents` but unloading them...
What characters are valid for JavaScript variable names?
...-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0...
Best way to serialize an NSData into a hexadeximal string
...45464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9da...
逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...则炸弹爆炸。而这个整数又作为func4的参数传入。在0x8048ca6的指令中，我们可以确定func4(-0x4(%ebp))=144才能过关。
那么深入一下func4的运作机理就是很有必要的，如下图给出了func4：
在上图中1作为func4的递归主体根据jg 8048c4e可...