buffer mode: indicates that the flag used is file_flag_no_buffering.
2) buffer mode: indicates that the flag used is file_flag_sequential_scan.
3) asynchronous mode: the flag used is file_flag_overlapped.
The source code is as follows:
# Include # Include
// Three partternsVoid filter_nobuffer (char * Source, char * sink, void (* func) (char * ADDR ));Void filter_sequen (char * Source, char * sink, void (* func) (char * ADDR ));Void filter_overlp (char * Source, char * sink, void (* func) (cha
入还是文件内容最后写入f3. Close () F4=open ("File_test", "w+", encoding= "Utf-8") #写读模式, as long as "write in front" will build a new file in writing f4.write ("----------------------\ n") F4.write ("----------------------\ n") f4.write ("----------------------\ n") F4.seek (Ten) #光标移动到10的位置f4. Write ("test4") #再写入会将原内容覆盖f4. Seek (0) # Move the cursor to the beginning of the position print (F4.read ()) F4.close () #输出 #----------nihao-----#----------------------#----------------------
+ E + S-view the blank space (convert the space to a green point, which is especially convenient when searching for extra spaces)
Debug and run
F5-start debugging
Shift + F5-Stop debugging
F9-set breakpoints
CTRL + Shift + F9-delete all breakpoints
F10-process-by-process debugging
F11-statement-by-statement debugging
Project operations
Alt + enter-open the Properties dialog box for
of the selected area (moving up or down the cursor or clicking the mouse will select multiple lines)Ctrl+shift+l: Delete from current position to end of lineCTRL+SHIFT+8: Turn all tab to ' or restoreCTRL+T: Show Variable typeCtrl+↑: Rolling up the screenCtrl+↓: Rolling down the screenCtrl+del: Delete the back half of the current word (split with the cursor)Ctrl+backspace: Delete the first half of the current word (split with the cursor)ctrl+←: Move to the previous wordctrl+→: Move to the next w
[FromE liangshi Yiyou Network] Although most of the errors discussed in this article are for C #, some errors are also related to other CLR-oriented languages or frameworks class library (FCL) languages. Five common errors described below:Common error 1: Use a reference as a value or vice versa
Programmers in C ++ and many other languages are used to assigning values to variables either simple values or references to existing objects. However, in C #, whether it is a value or a reference is dete
f3--View Files
f4--Edit File
f5--Copy Files
f6--renaming, moving files
f7--new Folder
f8--Delete files, folders
f10--Menu Bar Activation switch
Alt
alt+f1--Change drive on left window
alt+f2--change the drive on the right window
alt+shift+f3--Use Internal viewer to browse files
alt+f5--Compressed Files/folders
alt+shift+f5--compressed files/folders an
This article will briefly describe the use of Pstree,top,htop,dstat:Pstree
Pstree-display a tree of processesPstree: Displays the process state tree, and the pstree command lists the current processes and their tree structure. The main options are as follows.-A: Displays the command and full parameters of the executing program.-C: Cancel the program with the same name and merge display.-N: Sort by pid size.-P: Displays PID.-U: Displays UID information.Common commandsPstree-a Show All infor
, the data experienced both the client (browser) cache and the CDN Edge node cache, and the following two phases of the cache were analyzed in detail.
Client (browser) caching
1 Disadvantages of client-side caching
Client-side caching reduces server requests, avoids duplication of files, and significantly improves user locations. But when the site is updated (such as CSS, JS, and picture files), browsers still keep old versions of the files locally, resulting in unpredictable consequences.
O
First of all, write a simple code example in vs.
The normal attempt to run in VS is no breakpoint debugging, just press F5.
The resulting results are as follows.
When debugging, you need to set at least one breakpoint (click to the left of where you want to set it). debugging starts debugging by causing the program to run to a breakpoint and suspend its operation.
By pressing F5, you can find th
The first prize in the world Programming Competition-general Linux technology-Linux programming and kernel information. The following is a detailed description. Save the following text as 1.txtand Add the above content.
Open a DOS window and enter
Debug You get a 1.com program and run it.
The screen is a scenario where the game is turned around (Descent!
E100 33 f6 bf 0 20 b5 10 f3 a5 8c c8 5 0 2 50 68 13 1 cb e 1f be a1 1 bf 0 1
E11b 6 57 b8 11 1 bb 21 13 89 7 4b 4b 48 79 f9 ad 86 e0 8b c8 bd f
I. debugging Basics
Debugging shortcuts
F5: start debugging
Shift + F5: Stop debugging
F10: Debug to the next sentence. Here is the single-step tracking.
F11: Debug to the next sentence and follow up the internal function
Shift + F11: jump out of the current function
CTRL + F10: Debug to the cursor position
F9: Set (cancel) breakpoint
Alt + F9: Advanced breakpoint settings
Tracking debug
Http://hi.baidu.com/royripple/blog/item/26492c500255396f84352473.html
Today, I am using VC ++ 6.0 to compile programs. I am learning Java, and the most convenient compiler I use is myeclipse. That is really convenient: Who knows who to use!
So, to personalize my own VC, start with the shortcut key!
The most uncomfortable thing is that F7 is compilation, while F5 is debugging and running. It is crtl + F5,
+ B and load the current document to the webpage. In the browser, fold Ctrl + num. Fold the current code segment. Fold CTRL + ALT + num. Fold all indented text. Fold Ctrl + Shift + num. -fold the entire code-level Directory window Alt + Shift + 3 show or hide the Directory window expand Ctrl + num + expand all the collapsed rows expand CTRL + ALT + num + expand all the collapsed text expand Ctrl + Shift + num + expand the entire code layer to the editing text/directory
Iphone QQ protocol and QQ iphone Protocol
The QQ Iphone login protocol only requires two packages. I felt mysterious before I understood it. After I understood it, I felt that QQ was so brave!
The following is a section on the Internet. different versions of the Protocol have the same encryption method, but the signatures are similar.
[NO.1 12:59:15 383 SEND 482 bytes]
00 00 01 E2 00 00 00 03 02 00 00 04 00 00 00
00 0C 31 31 31 31 31 31 31 31 31 E6 B0 29 A0 FC 47
AA 94 21 7E A6 2F DD 67 D4 D0
a new data is obtained.I guess this demo should be a button. Each time you click it to get the current time, it will be returned to the current page.
2: The IE browser will not refresh the content obtained through Ajax before the Expires time Expires.Sometimes, Ajax is used to fill certain parts of the page (such as a price list) during page loading ). it is not triggered by a user event (such as clicking a button), but is sent through javascript during page loading. it's like Ajax requests are
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