大约有 40,000 项符合查询结果（耗时：0.0453秒） [XML]
Can JSON start with “[”?
...ct, dictionary, hash table,
keyed list, or associative array.
An ordered list of values. In most languages, this is realized as an
array, vector, list, or sequence.
It then goes on to describe the two structures as:
Note that the starting and ending characters are curly bracke...
Must qualify the allocation with an enclosing instance of type GeoLocation
...
You need to create an instance of the parent class in order to create instances of your inner classes. Here is an example:
package RandomTests;
public class FinalConstructorTest {
public static void main (String [] arg){
FinalConstructorTest fct= new FinalConstru...
Alternatives to gprof [closed]
...ction call is 1 instruction, so something that locates costly calls is 2-3 orders of magnitude more precise.)
that the call graph is important.
What you need to know about a program is not where it spends its time, but why. When it is spending time in a function, every line of code on the stack give...
What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...rectional, I think it would be better to call setGroup() from addUser() in order to hold both sides consistent.
– axtavt
Mar 19 '11 at 16:24
...
Why are const parameters not allowed in C#?
...ially for C++ developers. In C++ we used to mark a parameter as const in order to be sure that its state will not be changed in the method. There are also other C++ specific reasons, like passing const ref in order to pass by ref and be sure that state will not be changed. But why can't we mark ...
Efficient evaluation of a function at every cell of a NumPy array
...one would like to avoid possible cache misses if axis are handled in wrong order.
Numpy has already a machinery in place to process axes in the best possible order. One possibility to use this machinery is np.vectorize. However, numpy's documentation on np.vectorize states that it is "provided prim...
Advantage of creating a generic repository vs. specific repository for each object?
... for users.Where(u=>u.HasPurchasedAnything) instead of users.Join(x=>Orders, something something, I dont know linq).Where(order=>order.Status==1).Join(x=>x.products).Where(x.... etc etc etc.... blah blah blah
– Arnis Lapsa
Oct 7 '11 at 17:43
...
Token Authentication vs. Cookies
...st example of a stateless protocol. But since most web apps need state, in order to hold the state between server and client, cookies are used such that the server can send a cookie in every response back to the client. This means the next request made from the client will include this cookie and wi...
Transactions in REST?
...ple items to a shopping basket and then submit that basket to process the order, you can add Bob's account entry to the transaction wrapper and then Bill's account entry to the wrapper. When all the pieces are in place then you can POST/PUT the transaction wrapper with all the component pieces. ...
Joining two lists together
...string>();
a.AddRange(b);
MSDN page for AddRange
This preserves the order of the lists, but it doesn't remove any duplicates which Union would do.
This does change list a. If you wanted to preserve the original lists then you should use Concat (as pointed out in the other answers):
var newL...