(I ). count); // 013 Regex r2 = new Regex ("^ Live for nothing, die for something $", RegexOptions. multiline); 14 Console. writeLine ("r2 match count:" + r2.Matches (I ). count); // 015 Regex r3 = new Regex ("^ Live for nothing,/r/ndie for something $"); 16 Console. writeLine ("r3 match count:" + r3.Matches (I ). count); // 117 Regex r4 = new Regex ("^ Live for nothing, $"); 18 Console. writeLine ("r4 match count:" + r4.Matches (I ). count); // 019 Regex r5 = new Regex ("^ Live for nothing, $"
I have recently written some optimizations for string functions and used x64 Assembly. I am also the first time in this article, so I would like to share with you.
X86: Also known as x32, it indicates the Intel x86 architecture, that is, Intel's 32-bit 80386 assembly instruction set.
X64: EM64T of AMD64 and Intel, excluding IA64. You can search for the differences between the three.
Register changes in x64 compared with x86,
We can see from the figure that the main change in the X64 architec
This article mainly introduces the related functions of Nginx Plus, which spans the various versions of Nginx plus R5/R6/R7/R9. The more advanced usage of Nginx reverse proxy and load balancing is involved. Mainly include: HTTP load balancer, HTTP long connection, TCP and UDP load balancing, upstream connection limit, the shortest time Equalization algorithm, session consistency, real-time health check, DNS re-resolution, access control, client connec
request at virtual address 56000050An error occurred during kernel access with 56000050来PGD = c3eb0000[56000050] *pgd=00000000Internal Error:oops:5 [#1]Modules linked In:first_drvCpu:0 not tainted (2.6.22.6 #1)PC is at first_drv_open+0x18 (offset of this instruction)/0x3c (total size of the function) [First_drv]The PC is the address of the instruction where the error occurredMost of the time, the PC value will only give an address, not to indicate in which functionLR is at chrdev_open+0x14c/0x1
resistance on R9 to R10 ". That's right, as he said. However, no matter whether the resistor is placed on R9 or R10, the PSB foot will not be connected. On R9 (parallel), it's okay if PSB is connected to + 5 V. If you want to switch PSB to the serial port mode again, it will be short-circuited. The consequences can be imagined.
The wiring table is as follows:
);Console. writeline ("R2 match count:" + r2.matches (I). Count); // 0RegEx R3 = new RegEx ("^ live for nothing, \ r \ ndie for something $ ");Console. writeline ("R3 match count:" + r3.matches (I). Count); // 1RegEx r4 = new RegEx ("^ live for nothing, $ ");Console. writeline ("R4 match count:" + r4.matches (I). Count); // 0RegEx R5 = new RegEx ("^ live for nothing, $", regexoptions. multiline );Console. writeline ("R5 match count:" + r5.matches (I). Count); // 0RegEx R6 = new RegEx ("^ live f
| h4) d from tt)Where B is not null;
B----ABAcAdBcBdCd
Implementation 3: You do not need to analyze functions.
Select a. name | B. name from t a, t B where a. no
Appendix, a SQL statement for 9*9 multiplication:
Select r1 | '*' | r1 | '=' | r1 * r1,Decode (r2, '','', r2 | '*' | r1 | '=' | r2 * r1) B,Decode (r3, '','', r3 | '*' | r1 | '=' | r3 * r1) C,Decode (r4, '','', r4 | '*' | r1 | '=' | r4 * r1) D,Decode (r5, '','', r5 | '*' | r1 | '=' | r5 * r1) E,Decode (r6, '','', r6 | '*' | r1 | '='
Nginx load balancing-expansion function (NGINX Plus), nginx Load Balancing
Nginx load balancing-expansion feature (NGINX Plus). This article mainly introduces the functions of NGINX Plus, and updates across different versions such as NGINX Plus R5, R6, R7, and R9.What is NGINX Plus?
As the name suggests, it is the enhanced or extended version of Nginx. We know that Nginx is open-source and free of charge, but charges are required for many functions of
(proprietary) development platform, just like the exclusive Komodo Island. In the version control field, Domino also has a unique "national condition ".Difficult
Design elements such as form views are stored in the database in binary format. Compared with text files, binary files have difficulties in comparing version differences and merging. The invention of dxl makes it possible to convert the design elements and XML files. However, many bugs in dxl have not been solved for a long time, and t
Label: Style Color SP data problems BS ad program nbsp
I. background
In the process of program debugging, a problem occurs. After the program goes into the stack and goes out of the stack, it always runs and uses GDB for debugging. After the stack operation is found, check that the data after the stack is imported does not match when the stack is released.
Ii. Analysis content
1,
Stmfd SP !, {R0-R12, R1}
Previously, it was understood that the first step is to import the stack R1,
register is 64-bit wide and they are:Rax, RBx, rcX, RDX, RSI, RDI, RSP, RBPR8, R9, R10, R11, R12, R13, R14, R15At the same time, the x86-64 fully supports General registers for x86-32 and x86-16:Eax, ax, Al, ah,EBX, BX, BL, BH,However,When performing inbound/outbound stack operations on registers, only the corresponding 64-bit registers can be inbound/outbound., That is:(Instructions that modify the stack (push, Pop, call, RET, enter, and leave) are
1. First download the software that needs to be configured:1 "Qt 5.1.0 for Android (Windows 32-bit, 716 MB) (Info): Http://qt-project.org/downloads2 "Android SDK tools (only tools can be downloaded): http://developer.android.com/sdk/index.htmlAndroid SDK offline install package (already the latest SDK 2013/7/26): http://www.wuleba.com/18892.html3 "Android NDK (android-ndk-r9-windows-x86.zip): http://developer.android.com/tools/sdk/ndk/index.html4 "Apa
*, check the red box, press the y key :Modify to jnienv*, OK:This is quite clear, and this part of the code is very simple, is to call the system to get the signature method, and then assign a value to a variable, but here is not the string content, but the hashcode value of the int type:When you return to the ARM code, you see the assignment, which is to get the R0 register value into the R9.Here, we must be clear-minded, that is, no matter how the
There is no doubt that virtual reality is currently the most novel and most interesting technology, it can completely change the video game, film and television viewing experience, presumably many friends want to experience some. However, the problem is: even if you are determined to spend at least 4000 yuan to buy a Oculus Rift (official website, not purchasing), but also need a virtual reality platform to run the high-end PC.
Although some "VR Ready" PCs have appeared in the market, prices a
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.