大约有 40,000 项符合查询结果（耗时：0.0393秒） [XML]
How to exclude file only from root folder in Git
...er, and I want to ignore that folder in repo root, its contained files and all descendent subfolders and their files? /folder/?
– CodeManX
Aug 23 '15 at 20:31
12
...
Spring Boot Rest Controller how to return different HTTP status codes?
...s you can use. Quite good way is to use exceptions and class for handling called @ControllerAdvice:
@ControllerAdvice
class GlobalControllerExceptionHandler {
@ResponseStatus(HttpStatus.CONFLICT) // 409
@ExceptionHandler(DataIntegrityViolationException.class)
public void handleConflict...
Is the ternary operator faster than an “if” condition in Java [duplicate]
...one to " if-conditional syndrome " which means I tend to use if conditions all the time. I rarely ever use the ternary operator. For instance:
...
How can I negate the return-value of a process?
...
The negation works on the whole pipe, so you can't do ldd foo.exe | ! grep badlib but you can do ! ldd foo.exe | grep badlib if you want the exit status to be 0 if badlib is not found in foo.exe. Semantically you want to invert the grep status, but inverting the entire pipe gives t...
Can I write a CSS selector selecting elements NOT having a certain class or attribute?
I would like to write a CSS selector rule that selects all elements that don't have a certain class. For example, given the following HTML:
...
How to echo shell commands as they are executed
In a shell script, how do I echo all shell commands called and expand any variable names?
13 Answers
...
How do I force make/GCC to show me the commands?
... Although the above suggestion of "make -n" worked as well. :) Thank you all for your responses.
– hernejj
Apr 28 '11 at 14:45
77
...
Use of “this” keyword in formal parameters for static methods in C#
...is an extension method. See here for an explanation.
Extension methods allow developers to add new methods to the public
contract of an existing CLR type, without having to sub-class it or
recompile the original type. Extension Methods help blend the
flexibility of "duck typing" support p...
How do I extend a class with c# extension methods?
...ystem.Type object. Not pretty, but still interesting.
public static class Foo
{
public static void Bar()
{
var now = DateTime.Now;
var tomorrow = typeof(DateTime).Tomorrow();
}
public static DateTime Tomorrow(this System.Type type)
{
if (type == typeof(D...
Get the last inserted row ID (with SQL statement) [duplicate]
... Note that SCOPE_IDENTITY() can yield incorrect results as well (under parallelism), see support.microsoft.com/kb/2019779 - the fix was first made available last week for 2008 R2 SP1 CU5. In all earlier versions, the workarounds are to set maxdop to 1, keep a fixed plan that happens to not use para...