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Requirement
Solution
Theory
Practice
[C # delicious] file length needs to be obtained using the HTTP Head Method
There is a fixed URL file on the server sideProgramThis file will be updated regularly. Now you need to write a tool to monitor changes to this file.
Solution
At first, I thought of downloading the file,
Objective-C factory method, objective-c FactoryThe method used to create an object is factory method 1. The no-parameter factory method creates an object and gives the property a default value.
// Implementation of the factory
Java calls the DLL dynamic library-JNI method implemented by C/C ++, javajni
Due to the needs of the project, I recently studied how to call the DLL in java and wrote it here for future reference:
JNI: Java Native Interface (JNI) is a part of the Java platform and can be used to interact with code written in other languages.
The following are the JNI jobs extract
http://www.51zxw.net/study.asp?vip=1368926
A full Windows service source code download address
Development Environment VS 2010 (but the method applies to VS2005 and VS 2008) C + + ATL edition
After the EXE is compiled, use the batch processing under Release to load and unload the serviceStart and stop operations for services in the Service Control Panel in WindowsThis program is a complete Windows Service d
Author: failingProgramMember-eight gods
C # demonstrates the features and functions of multiple languages. The following describes the extension methods introduced from objective-C.
The following example demonstrates an extension method defined in C # For the system. string class:
Namespace extensionmethods {p
C # methodsstring drivename ="C:\ \"; System. IO. DriveInfo[] drivers = System. IO. DriveInfo. Getdrives(); foreach (var drive in drivers){if (drivename = = Drive. Name)Console. WriteLine(drive. Totalfreespace /(1024x768 * 1024x768 *1.0F) + "G"); }C # can only fetch all of the disks at once, so if you specify a disk, you need to judge and get the Space un
Original address: C/C ++ algorithm learning notes (6)-Insert Method
Insert method:
The insertion method is complicated. The basic working principle is to draw a card, find the corresponding position in the front card, and then continue to the next one.
#include
I = 1:
It
before self-study data structure of the time to see the C language version of the four basic sorting method, C language is almost forgotten, recently available in PHP four sort method to re-write again, review the increasingly unfamiliar algorithm. Paste the code directly.
"; Print_r ($var); echo "";} $arr
Original address: C/C ++ algorithm learning notes (3)-Bubble Method
Bubble Method:
This is the most primitive and well-known slowest algorithm. Its name comes from because its work seems to be bubbling:
#include
Figure:
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Before comparison
Method One, directly find the C disk to clean
The first step, we found on the desktop "computer or My Computer" (XP is called My Computer, Win7 after the computer "," below the Win7 as an example as shown in the following figure;
The second step, then we select C disk, right and then "Properties" click on it.
The third step, in the pop-up Propert
C #3.0 introduces the division method. Generally speaking, it defines a method in a division class and implements it in another division class, this design is mainly used by the designers of LINQ to SQL. The following is a simple example:
Code
Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Using system;
Using sy
Objective-C is a clever method to disguise an object as a dictionary. objective-c
Technical lust refers to technologies and products that are too clever and useless.Reprinted please indicate the source uxyheaven csdn blogIn fact, this skill is useful in certain situations where the requirements are not high.
We originally had an interface 1 designed ...., The di
How can I create a C #. Net generic class instance through the reflection mechanism in C #. NET and call its method ??Reward score: 40 | resolution time: | Questioner: rjgaoyuan
Here is a simple and easy-to-understand example... Common Reflection classes and generic reflection classes are different... Public abstract class businessmanager {//
Best Answ
, and the two are combined.) )static members are, in fact, the same as global variables, that is, class-level, which is the same as the class, except that the compiler restricts its use to the scope of the class (Not the class object, which is not a member of the class object). Class is initialized outside of the definition of the class (not domain-scoped) . Ordinary members are "object-level". A member of a class level exists prior to the existence of any object of that class, and is shared by
method, and declare the asynchronous method execution end of the callback methodPrivate Delegate listprivatenew getmaildelegate (Getemailonlycount);Private AsyncCallback asynccallback;//execution of the callback method, the method after the asynchronous method executesAnd t
callback callback function needs to be encapsulated in a delegate, delegate static extern int Funcallback (string str);unsigned char** ppimage replaced with IntPtr ppimageint nwidth replaced with ref int nwidthint*, Int, then all can be ref int correspondingDouble needle finger type parameter, can be used ref INTPTRThe function pointer uses C + +: TypeDef double (*FUN_TYPE1) (double); Corresponds to C #:p
-c. Excluding these features that are unique to Swift:generics-Fan typetuples-tuplesenumerations The enumeration defined in the defined in Swift-swiftstructures The structure defined in the defined in Swift-swifttop-level functions defined in Swift-swift the top-level function defined in SwiftEyes on China variables defined in Swift-swift global variables definedtypealiases type aliases defined in the defined in Swift-swiftswift-style variadics-swift
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