大约有 16,000 项符合查询结果（耗时：0.0542秒） [XML]
Google Maps API - Get Coordinates of address
I would like to convert addresses into long/lat.
4 Answers
4
...
Simple proof that GUID is not unique [closed]
...se the ram we allocated up front.
// Actually, these are pointless too.
//GC.KeepAlive(reserveSomeRam);
//GC.Collect();
}
Console.WriteLine("{0:u} - Built bigHeapOGuids, contains {1} of them.", DateTime.Now, bigHeapOGuids.LongCo...
In SQL, what's the difference between count(column) and count(*)?
...ot
[edit] added this code so that people can run it
create table #bla(id int,id2 int)
insert #bla values(null,null)
insert #bla values(1,null)
insert #bla values(null,1)
insert #bla values(1,null)
insert #bla values(null,1)
insert #bla values(1,null)
insert #bla values(null,null)
select count(*),...
Java Enum definition
...ss StatusCode extends Enum<StatusCode>
Now if you check the constraints, we've got Enum<StatusCode> - so E=StatusCode. Let's check: does E extend Enum<StatusCode>? Yes! We're okay.
You may well be asking yourself what the point of this is :) Well, it means that the API for Enum ...
Using member variable in lambda capture list inside a member function
...here your puzzle object might already be destroyed, you'll need to make an intermediate, local copy:
vector<vector<int> > tmp(grid);
auto lambda = [tmp](){}; // capture the local copy per copy
† I'm simplifying - Google for "reaching scope" or see §5.1.2 for all the gory details....
Difference between decimal, float and double in .NET?
...
float and double are floating binary point types. In other words, they represent a number like this:
10001.10010110011
The binary number and the location of the binary point are both encoded within the value.
decimal is a floating decimal point type. In other ...
Subqueries vs joins
...mple of how subqueries are evaluated in MySQL 6.0.
The new optimizer will convert this kind of subqueries into joins.
share
|
improve this answer
|
follow
|
...
Redis strings vs Redis hashes to represent JSON: efficiency?
...ey break out hash-max-ziplist-value or hash-max-ziplist-entries Redis will convert it to practically usual key/value pairs under a hood. ( see hash-max-ziplist-value, hash-max-ziplist-entries ) And breaking under a hood from a hash options IS REALLY BAD, because each usual key/value pair inside Redi...
Performance of Find() vs. FirstOrDefault() [duplicate]
Got an interesting outcome searching for Diana within a large sequence of a simple reference type having a single string property.
...
Core pool size vs maximum pool size in ThreadPoolExecutor
...
There is an interesting method allowCoreThreadTimeOut(boolean) which allows core threads to be killed after given idle time. Setting this to true and setting core threads = max threads allows the thread pool to scale between 0 and max th...