大约有 44,614 项符合查询结果(耗时:0.0370秒) [XML]
Python function global variables?
...
If you want to simply access a global variable you just use its name. However to change its value you need to use the global keyword.
E.g.
global someVar
someVar = 55
This would change the value of the global variable to 55. Otherwise it would just assign 55 to a local variable.
...
Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
...
Never ever should you use money. It is not precise, and it is pure garbage; always use decimal/numeric.
Run this to see what I mean:
DECLARE
@mon1 MONEY,
@mon2 MONEY,
@mon3 MONEY,
@mon4 MONEY,
@num1 DECIMAL(19,4),
@num2 DECIMAL(19,4...
What is the point of “final class” in Java?
I am reading a book about Java and it says that you can declare the whole class as final . I cannot think of anything where I'd use this.
...
Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
...
One word answer: asynchronicity.
Forewords
This topic has been iterated at least a couple of thousands of times, here, in Stack Overflow. Hence, first off I'd like to point out some extremely useful resources:
@Felix Kling's answer to "How do I retu...
How to identify if the DLL is Debug or Release build (in .NET) [duplicate]
...
The only best way to do this is to check the compiled assemblies itself. There is this very useful tool called '.NET Assembly Information' found here by Rotem Bloom. After you install this, it associates itself with .dll files to open with itself. After installing you can just double-click...
For a boolean field, what is the naming convention for its getter/setter?
...follow
|
edited Oct 10 '14 at 14:29
answered Mar 16 '11 at 8:27
...
Why are floating point numbers inaccurate?
...s, floating point numbers are represented a lot like scientific notation: with an exponent and a mantissa (also called the significand). A very simple number, say 9.2, is actually this fraction:
5179139571476070 * 2 -49
Where the exponent is -49 and the mantissa is 5179139571476070. The reason...
How to call asynchronous method from synchronous method in C#?
...alling async methods via async methods, but my whole program is not built with async methods.
15 Answers
...
Why does Math.Round(2.5) return 2 instead of 3?
...
Firstly, this wouldn't be a C# bug anyway - it would be a .NET bug. C# is the language - it doesn't decide how Math.Round is implemented.
And secondly, no - if you read the docs, you'll see that the default rounding is "round to even" (banker's rounding):
Return V...
Is it possible to use jQuery .on and hover?
I have a <ul> that is populated with javascript after the initial page load. I'm currently using .bind with mouseover and mouseout .
...