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Fast way to get image dimensions (not filesize)
...xImageString .= sprintf("%02x", ord($ByteStream[$i]));
if ($Salto==64){
$this->HexImageString .= "\n";
$Salto = 0;
}
}
}
}
private function Byte2PosInt($Byte08,$Byte00) {
return ((ord($Byte08) & 0xFF) << 8)|((ord($Byte00) & 0xF...
How to round the minute of a datetime object
...-01-01 01:03:34.285714285
7 2019-01-01 01:04:00.000000000
dtype: datetime64[ns]
>>> ts.dt.round('1min')
0 2019-01-01 01:01:00
1 2019-01-01 01:01:00
2 2019-01-01 01:02:00
3 2019-01-01 01:02:00
4 2019-01-01 01:03:00
5 2019-01-01 01:03:00
6 2019-01-01 01:04:00
7 2019-01-01 0...
What's the difference between integer class and numeric class in R
...he number is stored in two pieces: the exponent (like 308 above, except in base 2 rather than base 10), and the "significand" (like 1.797693 above).
Note that 'is.integer' is not a test of whether you have a whole number, but a test of how the data are stored.
One thing to watch out for is that t...
Adding git branch on the Bash command prompt
...
164
git 1.9.3 or later: use __git_ps1
Git provides a shell script called git-prompt.sh, which incl...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...->p的偏移之所以是0x8而不是0x6，是因为内存对齐了（我在64位系统上）。关于内存对齐，可参看《深入理解C语言》一文。
好了，现在你知道为什么原题中会访问到了0x4的地址了吧，因为是相对地址。
相对地址有很好多处，其...
Error message 'Unable to load one or more of the requested types. Retrieve the LoaderExceptions prop
... }
string errorMessage = sb.ToString();
//Display or log the error based on your application.
}
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Apply CSS styles to an element depending on its child elements
...
As far as I'm aware, styling a parent element based on the child element is not an available feature of CSS. You'll likely need scripting for this.
It'd be wonderful if you could do something like div[div.a] or div:containing[div.a] as you said, but this isn't possible....
do { … } while (0) — what is it good for? [duplicate]
...n are fairly rare, but they do exist. One which springs to mind is a menu-based console application:
do {
char c = read_input();
process_input(c);
} while (c != 'Q');
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Execute Python script via crontab
...orial here.
Look at point 3 for a guide on how to specify the frequency.
Based on your requirement, it should effectively be:
*/10 * * * * /usr/bin/python script.py
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How to know what the 'errno' means?
...
For reference, here is a list from Ubuntu 14.04 amd64 pastebin.com/407gDBPq
– kevinf
Aug 8 '14 at 18:31
...