大约有 17,000 项符合查询结果(耗时:0.0319秒) [XML]

https://stackoverflow.com/ques... 

Age from birthdate in python

...t(True) is 1 and int(False) is 0: from datetime import date def calculate_age(born): today = date.today() return today.year - born.year - ((today.month, today.day) < (born.month, born.day)) share | ...
https://stackoverflow.com/ques... 

mysql Foreign key constraint is incorrectly formed error

...ISAM engine. It's a silly mistake, which I fixed with: ALTER TABLE parent_table ENGINE=InnoDB; share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How does tuple comparison work in Python?

... @CMCDragonkai -- yes. try: x = tuple([0 for _ in range(n)]) and do the same for y. Setting n=100, 1000, 10,000, and 100,000 and running %timeit x==y gave timing values of .5, 4.6, 43.9, and 443 microseconds respectively, which is about as close to O(n) as you can pra...
https://stackoverflow.com/ques... 

Replace comma with newline in sed on MacOS?

...the question says OS X, but this doesn't work with GNU sed-4.2.2-6.fc20.x86_64. – Cristian Ciupitu May 25 '14 at 2:49 11 ...
https://stackoverflow.com/ques... 

How to remove padding around buttons in Android?

...s. <android.support.design.button.MaterialButton android:layout_width="match_parent" android:layout_height="wrap_content" android:insetTop="0dp" android:insetBottom="0dp" android:text="@string/view_video" android:textColor="@color/white"/> ...
https://stackoverflow.com/ques... 

What's the difference between MyISAM and InnoDB? [duplicate]

...e differences between InnoDB and MyISAM. But yes, InnoDB behavior with AUTO_INCREMENT is a difference, and one that we have to account for if we are going to use AUTO_INCREMENT, and if we are dependent on some behavior that isn't supported. This difference could be considered a disadvantage; perhaps...
https://stackoverflow.com/ques... 

UITapGestureRecognizer breaks UITableView didSelectRowAtIndexPath

... This is the cleanest in Swift. Thanks – Dx_ Aug 8 '16 at 6:00 works well within cells in tableview, lovely ...
https://stackoverflow.com/ques... 

how to read System environment variable in Spring applicationContext

...use <util:properties id="dbProperties" location="classpath:config_#{systemProperties['env']}/db.properties" /> Combined with java ... -Denv=QA should solve your problem. Note also a comment by @yiling: In order to access system environment variable, that is OS level variables a...
https://stackoverflow.com/ques... 

UICollectionView spacing margins

...ake(top, left, bottom, right)]; Updated for Swift 5 func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets { return UIEdgeInsets(top: 25, left: 15, bottom: 0, right: 5) } ...
https://stackoverflow.com/ques... 

How Do I Take a Screen Shot of a UIView?

...a category method on UIView to get the view as an UIImage: - (UIImage *)pb_takeSnapshot { UIGraphicsBeginImageContextWithOptions(self.bounds.size, NO, [UIScreen mainScreen].scale); [self drawViewHierarchyInRect:self.bounds afterScreenUpdates:YES]; // old style [self.layer renderInCont...