大约有 45,000 项符合查询结果（耗时：0.0804秒） [XML]
@OneToMany List vs Set difference
...
A list, if there is no index column specified, will just be handled as a bag by Hibernate (no specific ordering).
One notable difference in the handling of Hibernate is that you can't fetch two different lists in a single query. For example, if you have a Person entity having a list ...
ASP.NET MVC3: What is the packages.config for?
...ackOverflow for most of issues/challenges I face.
– Sandeep
Jan 20 '17 at 20:22
add a comment...
iOS app icon with transparent background showing black background on device
I have added an icon to my app. It has rounded edges and no background. The problem is that when I run an app on my device (iPhone 5) the icon has a black background behind the edges as if it wasn't transparent. Any solutions?
...
XPath: How to select nodes which have no attributes?
...
To address Marek Czaplicki's comment and expand the answer
//node[not(@*) or not(string-length(@*))]
....will select all node elements with zero attributes OR which have attributes that are all empty. If it was just a particular attribute you are interested i...
NSLog an object's memory address in overridden description method
...
To print address use %p format specifier and self pointer:
-(NSString *) description {
return [NSString stringWithFormat:@"<SomeClass: %p>\nparmeterOne: %@\nparameterTwo: %@",
self, self.parameterOne, self.paramterTwo];
}
...
How to redirect stderr to null in cmd.exe
I have an application that logs a lot of noise to stderr and REALLY slows down the execution of the application. I would like to redirect that output to null. Is this possible with cmd.exe?
...
Is \d not supported by grep's basic expressions?
...
grep's default mode is (iirc) POSIX regex, and \d is pcre. You can either pass -P to gnu grep, for perl-like regexps, or use [[:digit:]] instead of \d.
daenyth@Bragi ~ $ echo 1 | grep -P '\d'
1
daenyth@Bragi ~ $ echo 1 | grep '[[:digit:]]'
1
...
How do I turn off “Automatically Switch to Debug Perspective” mode in eclipse?
Is there a way to turn off this mode? I must have clicked it by accident, and now it's getting really annoying.
4 Answer...
Django: Set foreign key using integer?
...y is a particularly useful aspect of Django, one that everyone should know and use from time to time when appropriate.
caveat:
@RuneKaagaard points out that employee.type is not accurate afterwards in recent Django versions, even after calling employee.save() (it holds its old value). Using it wou...
How to loop through all the files in a directory in c # .net?
I want to get the files in folder and also in its subfolders.The following code does not get the files in its subfolder:
3 ...