大约有 47,000 项符合查询结果（耗时：0.0664秒） [XML]
Test or check if sheet exists
...ers to the workbook that contains the macro code, which might be different from the workbook than one wants to test. I guess ActiveWorkbook would be useful for most cases (contrived situations are always available, though).
– sancho.s ReinstateMonicaCellio
Sep ...
Difference between scaling horizontally and vertically for databases [closed]
...ersion of MySQL). It provides an easy way to scale vertically by switching from small to bigger machines. This process often involves downtime.
In-Memory Data Grids such as GigaSpaces XAP, Coherence etc.. are often optimized for both horizontal and vertical scaling simply because they're not bound t...
Spring Boot not serving static content
.... Looking at org.springframework.boot.autoconfigure.web.ResourceProperties from v1.3.0.RELEASE, I see a field staticLocations that can be configured in the application.properties. Here's a snippet from the source:
/**
* Locations of static resources. Defaults to classpath:[/META-INF/resources/,
*...
Java: int array initializes with nonzero elements
...ker (bug id 7196857). Unfortunately, I did not wait for any clarifications from Oracle about the following points. As I see, this bug is OS-specific: it absolutely reproducible on 64-bit Linux and Mac, but, as I see from comments, it reproduces not regularly on Windows (for similar versions of JDK)....
Functional programming vs Object Oriented programming [closed]
...Abstract Data Type is spread throughout a codebase, you will indeed suffer from this problem, but it is perhaps a poor design to start with.
EDITED Removed reference to implicit conversions when discussing type classes. In Scala, type classes are encoded with implicit parameters, not conversions, a...
How do I use $rootScope in Angular to store variables?
...on entitled "$rootScope exists, but it can be used for evil." Passing data from one controller to another is evil.
– MBielski
Jan 20 '14 at 16:05
1
...
Command prompt won't change directory to another drive
...
The short answer
The correct way to go from C:\...\Adminto D:\Docs\Java drive, is the following command :
cd /d d:\Docs\Java
More details
If you're somewhere random on your D:\ drive, and you want to go to the root of your drive, you can use this command :
...
What does (x ^ 0x1) != 0 mean?
...
@supercat: When a conversion from floating-point to integer is called for, the conversion is implicit (doesn't require cast syntax). But no conversion is triggered by bitwise operators, they simply fail for floating-point types.
– ...
Using Transactions or SaveChanges(false) and AcceptAllChanges()?
...soft.com/en-us/data/dn456843.aspx
use context.Database.BeginTransaction.
From MSDN:
using (var context = new BloggingContext())
{
using (var dbContextTransaction = context.Database.BeginTransaction())
{
try
{
context.Database.ExecuteSqlCommand(
...
What is the equivalent of Java's final in C#?
...e context in which it is used.
Classes
To prevent subclassing (inheritance from the defined class):
Java
public final class MyFinalClass {...}
C#
public sealed class MyFinalClass {...}
Methods
Prevent overriding of a virtual method.
Java
public class MyClass
{
public final void myFinalMethod()...