大约有 36,010 项符合查询结果（耗时：0.0731秒） [XML]
Performance of Find() vs. FirstOrDefault() [duplicate]
...e whereas Find is called as a method on the source list.
So, what is find doing? This is the decompiled Find method
private T[] _items;
[__DynamicallyInvokable]
public T Find(Predicate<T> match)
{
if (match == null)
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.match);
fo...
Another Repeated column in mapping for entity error
...ct reference to the entity. Remove the customerId field, it's useless. And do the same for productId. If you want the customer ID of a sale, you just need to do this:
sale.getCustomer().getId()
share
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commands not found on zsh
...ent that you've managed to mess up your PATH variable. (Your current PATH doesn't contain any location where common utilities are located.)
Try:
PATH=/bin:/usr/bin:/usr/local/bin:${PATH}
export PATH
Alternatively, for "resetting" zsh, specify the complete path to the shell:
exec /bin/zsh
or
...
How to see full symlink path
...avors, but readlink should be.
readlink -f symlinkName
The above should do the trick.
Alternatively, if you don't have either of the above installed, you can do the following if you have python 2.6 (or later) installed
python -c 'import os.path; print(os.path.realpath("symlinkName"))'
...
What is the difference between range and xrange functions in Python 2.X?
...is faster but I have no idea why it's faster (and no proof besides the anecdotal so far that it is faster) or what besides that is different about
...
outline on only one border
..., but just only on one side of it.
Until now, I've been using an image to do that (GIF/PNG) that I would then use as a background and stretch it (repeat-x) and position a little off from the top of my block.
Recently, I discovered the outline CSS property, which is great! But seems to circle the ...
How to install a plugin in Jenkins manually
...
Yes, you can. Download the plugin (*.hpi file) and put it in the following directory:
<jenkinsHome>/plugins/
Afterwards you will need to restart Jenkins.
...
Swapping column values in MySQL
...becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permissions to do that.
...
Why can't I use float value as a template parameter?
...
The current C++ standard does not allow float (i.e. real number) or character string literals to be used as template non-type parameters. You can of course use the float and char * types as normal arguments.
Perhaps the author is using a compiler t...
Installing Latest version of git in ubuntu
...untu git maintainers team has a PPA just for that
ppa:git-core/ppa
Just do:
sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git
If add-apt-repository command is not found, install it first with
sudo apt-get install software-properties-common python-software-p...