大约有 20,000 项符合查询结果(耗时:0.0314秒) [XML]
How can I iterate over an enum?
... @thegreatjedi It would have been quicker to search, or even compile a test program, than to ask that question. But yes, since C++11 it is perfectly valid C++ syntax, which the compiler translates to the equivalent (and far more verbose/less abstracting) code, usually via iterators; see cpprefer...
Git: Create a branch from unstaged/uncommitted changes on master
... overwrite your local changes. The result of your checkout master is:
M testing
, which means that your working files are not clean. git did change the HEAD, but did not overwrite your local files. That is why your last status still show your local changes, although you are on master.
If you r...
How Can I Set the Default Value of a Timestamp Column to the Current Timestamp with Laravel Migratio
...
Can this also be used for PARTITION BY statements in your tests?
– Glenn Plas
Jan 2 '14 at 17:15
2
...
SELECT DISTINCT on one column
...ery. In the subquery you use GROUP BY instead of DISTINCT:
SELECT * FROM [TestData] WHERE [ID] IN (
SELECT MIN([ID]) FROM [TestData]
WHERE [SKU] LIKE 'FOO-%'
GROUP BY [PRODUCT]
)
share
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...
Replace Default Null Values Returned From Left Outer Join
...r example:
SELECT
t.id,
COALESCE(d.field, 'default')
FROM
test t
LEFT JOIN
detail d ON t.id = d.item
Also, you can use multiple columns to check their NULL by COALESCE function.
For example:
mysql> SELECT COALESCE(NULL, 1, NULL);
-> 1
mysql> SELECT COALESCE(...
Calling startActivity() from outside of an Activity?
...="standard".
Intent i = new Intent().setClass(mActivity.getApplication(), TestUserProfileScreenActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
// Launch the new activity and add the additional flags to the intent
mActivity.getApplication().startAc...
Use of “global” keyword in Python
... modify them you have to use the global keyword. For example:
foo = 1
def test():
foo = 2 # new local foo
def blub():
global foo
foo = 3 # changes the value of the global foo
In your case, you're just accessing the list sub.
...
With Mercurial, how can I “compress” a series of changesets into one before pushing?
...feature. I work on it, and when I think it's done, I commit the changeset. Testing it a bit more, I find that I could further improve this feature by tweaking something in the code. I make the change and commit. 20 minutes later, I find there's a bug in this new feature, so I fix it and commit that ...
Jenkins on OS X: xcodebuild gives Code Sign error
...s one build step that is "Execute Shell" in which I run commands I want to test as the jenkins user.
Once I had that set up, I could run the command
security list-keychains
And this revealed to me that the only thing that jenkins could see was the system keychain.
+ security list-keychains
"...
How can I print a circular structure in a JSON-like format?
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I needed to copy an object to use for stub testing. This answer was perfect. I copied the object and then removed the override. Thanks!!
– Chris Sharp
Nov 6 '18 at 16:14
...
