大约有 47,000 项符合查询结果（耗时：0.0492秒） [XML]
How to check if any flags of a flag combination are set?
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150
If you want to know if letter has any of the letters in AB you must use the AND & operator. ...
Assign multiple columns using := in data.table, by group
... a b col1 col2 mean sum Name1 Longer%
# 1: 1 1 hi hello 2.5 5 10 15
# 2: 2 2 hi hello 3.5 7 14 21
# 3: 3 3 hi hello 4.5 9 18 27
# 4: 1 4 hi hello 2.5 5 10 15
# 5: 2 5 hi hello 3.5 7 14 21
# 6: 3 6 hi hello 4.5 9 18 27
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Changing the resolution of a VNC session in linux [closed]
I use VNC to connect to a Linux workstation at work. At work I have a 20" monitor that runs at 1600x1200, while at home I use my laptop with its resolution of 1440x900.
If I set the vncserver to run at 1440x900 I miss out on a lot of space on my monitor, whereas if I set it to run at 1600x1200 it d...
Diff output from two programs without temporary files
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answered Sep 26 '10 at 23:06
John KugelmanJohn Kugelman
292k6262 gold badges455455 silver badges506506 bronze badges
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Python strftime - date without leading 0?
When using Python strftime , is there a way to remove the first 0 of the date if it's before the 10th, ie. so 01 is 1 ? Can't find a % thingy for that?
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How do I Sort a Multidimensional Array in PHP [duplicate]
...mething like this:
foreach ($mdarray as $key => $row) {
// replace 0 with the field's index/key
$dates[$key] = $row[0];
}
array_multisort($dates, SORT_DESC, $mdarray);
For PHP >= 5.5.0 just extract the column to sort by. No need for the loop:
array_multisort(array_column($mdarra...
How do I undo “Scope to this” in Visual Studio 2012?
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Didnt work for me in VS2017.. just stuck in the "scoped" folder. dammit - had to restart VS
– Piotr Kula
May 11 '17 at 12:21
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How to display full (non-truncated) dataframe information in html when converting from pandas datafr
...docs
For example, in iPython, we see that the information is truncated to 50 characters. Anything in excess is ellipsized:
If you set the display.max_colwidth option, the information will be displayed fully:
share
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What's the difference between lists enclosed by square brackets and parentheses in Python?
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Ondrej K.
6,5401111 gold badges1515 silver badges2727 bronze badges
answered Jan 17 '12 at 19:04
jterracejterrace
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What's the difference between `1L` and `1`?
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130
So, @James and @Brian explained what 3L means. But why would you use it?
Most of the time it ma...