大约有 40,000 项符合查询结果（耗时：0.0318秒） [XML]
Group By Multiple Columns
... new {t.MaterialID, t.ProductID}
into grp
select new
{
grp.Key.MaterialID,
grp.Key.ProductID,
Quantity = grp.Sum(t => t.Quantity)
}).ToList();
...
How do I find which program is using port 80 in Windows? [duplicate]
...@{};
Get-Process | ForEach-Object { $proc.Add($_.Id, $_) };
netstat -aon | Select-String "\s*([^\s]+)\s+([^\s]+):([^\s]+)\s+([^\s]+):([^\s]+)\s+([^\s]+)?\s+([^\s]+)" | ForEach-Object {
$g = $_.Matches[0].Groups;
New-Object PSObject |
Add-Member @{ Protocol = $g[1].Value } ...
Strings in a DataFrame, but dtype is object
Why does Pandas tell me that I have objects, although every item in the selected column is a string — even after explicit conversion.
...
CSS3 Spin Animation
... To clarify all these comments who are giving incorrect information... the selected answer IS CORRECT without modifications. 0 and 360 deg are actually different in the eyes of the browser, while still being the same point. For example if you try to rotate it from 0deg to 0deg (or 360deg to 360deg),...
How to code a BAT file to always run as admin mode?
...o where you want the shortcut
Right click the background of the directory
Select Paste Shortcut
Then you can set the shortcut to run as administrator:
Right click the shortcut
Choose Properties
In the Shortcut tab, click Advanced
Select the checkbox "Run as administrator"
Click OK, OK
Now whe...
Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
...eated that is permitted to have access from localhost only unless you have selected the option to enable access from remote machines during installation .
creating or update the desired user with '%' as hostname .
example :
CREATE USER 'krish'@'%' IDENTIFIED BY 'password';
...
How to remove non-alphanumeric characters?
...
[\W_]+
$string = preg_replace("/[\W_]+/u", '', $string);
It select all not A-Z, a-z, 0-9 and delete it.
See example here: https://regexr.com/3h1rj
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UIButton won't go to Aspect Fit in iPhone
...
This method worked for me very well.:
In Xib select the button and set user defined runtime attributes:
Key path: self.imageView.contentMode
Type: Number
Value: 1
We use number because you cant use enum there. But the UIViewContentModeScaleAspectFit is equal to...
Writing to output window of Visual Studio
...
I tried this on a set of unit tests. I debugged the selected test, but there was nothing of what I tried to print out in the debug window.
– Frank H.
Apr 22 '15 at 16:13
...
Generate list of all possible permutations of a string
...re x and y is how you define them and r is the number of characters we are selecting from --if I am understanding you correctly. You should definitely generate these as needed and not get sloppy and say, generate a powerset and then filter the length of strings.
The following definitely isn't the b...