大约有 40,000 项符合查询结果（耗时：0.0451秒） [XML]
Suppressing “is never used” and “is never assigned to” warnings in C#
...for incorrectly used fields. For instance, you might incorrectly write the new value of a property back to the property itself, never writing to the backing field.
To suppress warnings for "Field XYZ is never used", you do this:
#pragma warning disable 0169
... field declaration
#pragma warning ...
Haskell function composition (.) and function application ($) idioms: correct use
...ng rather than using it. Haskell users tend to want to think of f.g.h as a new clever creation rather f(g(h())). Now they're calling a new, albeit anonymous, function which they created rather than just chaining a big dictionary of prefabbed function calls like a PHP user.
– Ev...
TypeError: 'str' does not support the buffer interface
...
Adding "t" can have side-effects. On windows files encoded as text will have newlines ("\n") converted to CRLF ("\r\n").
– BitwiseMan
Jan 19 '16 at 20:08
...
Difference between object and class in Scala
...n instance first:
class A() {
def twice(i: Int): Int = 2 * i
}
val a = new A()
a.twice(2)
You can see how redundant this is, as twice does not require any instance-specific data.
object as a special named instance
You can also use the object itself as some special instance of a class or trai...
Getting All Variables In Scope
...ct mode and it's bad practice.
function storeVars(target) {
return new Proxy(target, {
has(target, prop) { return true; },
get(target, prop) { return (prop in target ? target : window)[prop]; }
});
}
var vars = {}; // Outer variable, not stored.
with(storeVars(vars)) {
var...
What is the best open XML parser for C++? [duplicate]
...tional mapping with a tree-like, in-memory data structure. C++/Parser is a new, SAX-like mapping which represents the information stored in XML instance documents as a hierarchy of vocabulary-specific parsing events. In comparison to C++/Tree, the C++/Parser mapping allows one to handle large XML do...
How to list all installed packages and their versions in Python?
...calendar netrc
DcxImagePlugin cdrom new
Dialog cgi nis
DiscID cgitb nntplib
DistUpgrade checkbox ntpath
...
How do I wrap text in a pre tag?
...nt in the stylesheet fixes all the problems.
– Jared Newnam
Feb 9 '18 at 16:46
1
@webfrogs Yes, m...
What is object serialization?
..., that contains the default values.
SerializationSample instance = new SerializationSample();
// The "ObjectOutputStream" class has the default
// definition to serialize an object.
ObjectOutputStream oos = new ObjectOutputStream(
// ...
Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope T
...n no transaction scope was active, will not be automatically enlisted in a newly created transaction scope.
Q5. No. Unless you open a connection in the transaction scope, or enlist an existing connection in the scope, there basically is NO TRANSACTION. Your connection must be automatically or manu...