. Net program memory usage Problems
1. Use the Performance Testing Tool dottrace 3.0 to calculate that the code in your program occupies a large amount of memory.
2. Forced garbage collection
3. Multiple dispose and close
4. Call timer every several seconds: setprocessworkingsetsize (process. getcurrentprocess (). Handle,-1,-1). For details, see the appendix.
5. Select release for release.
6. Note that less
Previous ArticleArticleInside, I copied the classic writing of a WindowsProgramI have a little perceptual knowledge of Windows program design, but I still have a little understanding of the program design. So I need to continue to learn about it and then read the classic book ......
The following is my summary. I will post it for you to see. I hope the heroes will give me some advice and point out the mis
Order of execution of iOS programsFirst, start with the main function of the main.m file.int main(int argc, char * argv[]){ @autoreleasepool { return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); }}//1、principalClassName:应用程序对象的类名(UIApplication或其子类)//2、delegateClassName:应用程序delegate的类名。(任何接受了UIApplicationDelegate的类)Uiapplicationmain creates an application instance, an application proxy instance, based on the above two class names. Then establish the event loop (Runl
[Program life] -- the path to my programmers and the path to program life programmers
I have been in contact with the blog community for more than half a year. Today I feel it is necessary to activate a blog of my own.
My recent work is still stable. In my spare time, I will talk about my past two years!
Choice
I have only been familiar with programming for two years. At the end of the 2014 college entr
: UiapplecationdelegateThe first call after instantiation is: Application:didfinishlaunchingwithoptions method: The method first creates a UIWindow window object and then sets the view in which the controller needs to be displayed.Note: When the application loads the Window object, Appdelegate is relegated to the second tier. Instances of the Uiviewcontroller class are on stage and do their work. Until the end of the application or a memory problem occurs, appdelegate is no longer what it should
1. Methods to Improve program efficiency and methods to improve program efficiency
1And if statements handle errors:
If (ch> = '0' ch
{
/* Process the code normally */
}
Else
{
/* Output error message */
Printf ("error... \ n ");
Return (FALSE );
}
This structure is very bad, especially if the "normal code processing" is very long, it is best not to use else in this case. First Judge the error, such:
If (
Shadowwind (Lily has died) 17:22:25 on
VC/MFC/
Basic ClassHow to call the console program: 1. Hide the console window; 2. Get the exit status of the console Program
I use system and _ spawnlp. The returned value is exit code, but the window cannot be hidden.Windows can be hidden with winexec (command, sw_hide), but no exit code is available.
Thank you for your advice ~ Number of questions: 100, replies: 6K
[WPF program ents tour] class digoal under system. Windows. Program entsZhou yinhui
For work and personal interest, start to learn about the "document" (flowdocument, XPS...) in WPF ...).
there are two ways to learn new things: first, let's take a rough look and then "learn with questions ", for example, if you need to encounter a problem, you can start to flip through the document, Google, solve the p
Link: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/cf884a91-c135-447d-b16b-214d2d9e9972
Sometimes some special Program This is required. Jim Zhou answer: when the program is started, you can register it as follows: The following is an example Code : Sample Code
code highlighting produced by actipro codehighlighter (freeware) http://www.CodeHighlighter.com/ --> ev
In the system, a business database usually has multiple physical databases, such as developing databases, testing databases, and production databases. In addition, there are other databases for other purposes, it is not easy to maintain the consistency of the structures between these databases. Therefore, we have created a simple database table structure comparison program to analyze the differences between different databases. here is just a simple c
How to open an application?
ShellExecute(this->m_hWnd,"open","calc.exe","","", SW_SHOW );
Or
ShellExecute(this->m_hWnd,"open","notepad.exe", "c://MyLog.log","",SW_SHOW );
As you can see, I have not passed the complete path of the program.Q: How do I open a file related to the same system program?
ShellExecute(this->m_hWnd,"open", "c://abc.txt","","",SW_SHOW );
Q: How to open a webpage?
ShellExecute(this->m_hWnd,"open", "http://www.google.com"
UTF-8-encoded program POST data to a GBK-encoded program to receive, what should be done? My system is developed by UTF-8 coding, and now there is data to be transmitted between a business and another business, now I want to POST data to the other party from my side, the encoding on the other side is GBK. how can I handle the POST data?
Reply to discussion (solution)
Convert data into gbkIf you want t
C ++ primer bookstore program, primer bookstore Program
# Include
Copyright Disclaimer: This article is an original article by the blogger and cannot be reproduced without the permission of the blogger.
PreventProgramThere are multiple methods to run multiple instances, such as using mutex and process name. what I want to achieve is that the first instance is activated when multiple instances are running, so that the focus is obtained and displayed on the front end.
It mainly uses two API functions:
Showwindowasync this function sets the display status of Windows generated by different threads.
Setforegroundwindow this function sets the thread that creates the specified window to t
Google is generally used to search for Google's Singapore website. The domain name is converted to SG for the final hk domain name.
------------------------------------------------
If you use word2007 to publish a video, the film is not displayed or you are prompted to have an attachment but no attachment, please go to the independent blog to view the complete article!
Modify and add content of the article only in the independent blog!
My independent blog: kiddie-Http://www.zyblog.net
Today, I encountered a problem. The C # program calls an external EXE file and then runs the following code to query it online,
If you simply call an external EXE file, you only need the following line of code.
System. Diagnostics. process. Start (application. startuppath + your application. .exe ");
It is also very easy to execute the following code after the EXE program is executed. You only need to us
// -- DOS dead guest star, which can break the endless loop of the program. Press Ctrl + ESC to immediately return the dead program to the DOS shell.
Code segmentAssume Cs: code, DS: CodeOrg 100 hStart: JMP installOldint dd 100 h DUP (?)Oldmcb dd 10 h DUP (?)Oldint2f dd?Oldint09 dd?Oldint21 dd?Sign db 0Newint21: CMP ah, 0ahJnz newint21endMoV Cs: byte PTR sign, 0ffhPushfCall Cs: oldint21MoV Cs: byte PTR sign
Set in Shell
In bash, export TZ = "Europe/Moscow" date-u-s "2011-10-29 21:55:00"Setenv TZ Europe/Moscow in cshell
Program(Also set environment variables)
In Linux, change the time zone and take effect immediately.Setenv ("TZ", "Europe/Moscow", 1 );Tzset ();The setting does not affect execution of other programs. that is to say, this setting is actually an environment variable that only takes effect for the pr
Loop Structure program design, structure Program Design
The main contents include:
For Loop Structure
For statement format:
For (initialization expression; conditional expression; Incremental expression)
Loop body statement Block
Where:
1. Initialization expression: It is generally a value assignment expression, which is usually used to assign an initial value to the cyclic variable. Loop variabl
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