To learn the regular expression, understanding meta-characters is a must to overcome the difficulties.Don't try to remember..: matches any single character.For example, the regular expression "B.G" can match the following string: "Big", "Bug", "BG", but does not match "Buug", "B."G "Can match" Buug ". []: Matches any one of the characters in the parentheses.For example, the regular expression "b[aui]g" matches the bug, big and bag, but does not match
*/TenQregexp RegExp ("[a-za-z][1-9][0-9]{0,2}"); One //sets the validator, which is the input of only the type of the regular requirement AUi->lineedit->setvalidator (NewQregexpvalidator (REGEXP, This)); -Connect (ui->okbutton,signal (clicked)), This, SLOT (Accept ())); -Connect (ui->cancelbutton,signal (clicked)), This, SLOT (Reject ())); the - } - -dialog::~Dialog () + { - DeleteUI; + } A at voiddialog::on_lineedit_textchanged () - { -
Official Open Source Address: https://github.com/aui/artTemplateAdd one:Default HTML escape output please use: {{= $value}}, which is preceded by the = number, otherwise than the slice address, will display instead of displaying the picture, you can also turn off the default escape functiontemplate.defaults.escape = falseAdd two:Can be used in a simple way to loop, more complex judgment nesting can be stronger than TODOLike what: Use of arttemplate t
base address of cs8900a is x191000000 in the address space of S3c2410. In I/O mode, the base address of the internal register of cs8900a is 0x300 h by default, and the address in the address space of S3C2410 is 0x19000300.
# DefineCs8900_base 0x19000300
After completing the preceding steps, the following driver is very easy to write. Use the NIC to suspend the function example:
VoidEth_halt (Void){/*Disable transmitter/receiver mode*/Put_reg (pp_linectl,0);//Disable Nic/*"Shutdown" t
/aui/artDialog/wiki/artDialog-v5%E5%8D%87%E7%BA%A7v6%E5%8F%82%E8%80%83SupportArtdialog is a free, open source program based on the LGPL protocol, which can be done on Github issues (to ensure efficiency, be sure to describe your problem, such as the Artdialog version number, browser version, etc.), with demo. Unqualified issues will likely be closed).
If you like Artdialog, please donate a cup OF coffee to support Artdialog. If you believe that
business parts, must be with Zhao a daily exchange, always exchange, because I am a financial layman) Safe Valley website Total construction cost 3w, I found a art, aUI design, self-responsible for front-end research and development work.May, June, in a blink of an eye in July, the website infrastructure is complete, but also the last with the country Alipay online transaction docking. July 8, my wife had an accident, the left hand metacarpal bone wa
To learn the regular expression, understanding meta-characters is a must to overcome the difficulties. Don't try to remember.Meta-character 1.: matches any single character except \ n.For example, the regular expression "B.G" can match the following string: "Big", "Bug", "B g", but does not match "Buug", "B." G "Can match" Buug ".[]: Matches any one of the characters in the parentheses (range, character set).For example, the regular expression "b[aui]
LINUX Nic (set Nic speed and mode) Ethtool is a command used to query and set Nic parameters. Summary: ethtoolethX // query ethX network port basic settings ethtool amp; ndash; h // Display ethtool command help (help) ethtool amp; ndash; iethX // query ethX network... LINUX Nic (set Nic speed and mode) Ethtool is a command used to query and set Nic parameters. Summary: ethtool ethX // query ethX network port basic settings ethtool-h // Display ethtool command help (help) ethtool-I ethX // quer
. For example, the Ethernet ancillary unit interface (AUI), a DB-15 connector can be used to connect Layer 1 and Layer 2.
Layer 2: Data Link Layer
Provides reliable data transmission through physical network links. Different data link layers define different network and Protocol features, including physical addressing, network topology, error verification, frame sequence, and traffic control. The physical addressing (corresponding to the network addre
must be overcome. Do not remember1..: match any single character except \ n. For example, the regular expression "B. g can match the following strings: "big", "Bug", and "BG", but it does not match "buug", "B .. g can match "buug ". 2. []: match any character in the brackets. For example, the regular expression "B [AuI] G" matches bugs, big, and bag, but does not match beg or Baug. You can use the hyphen "-" in brackets to specify the character range
,String Extraction,String replacement
The first step of a regular expression:Metacharacters
. Match any single character except \ nFor example, the regular expression "B. g can match the following strings: "big", "Bug", and "B g", but it does not match "buug", "B .. g can match "buug ".[] Match any character in bracketsFor example, the regular expression "B [AuI] G" matches bugs, big, and bag, but does not match beg or Baug.
You can use the hyphe
as the network layer attribute, which looks reasonable. In this case, the ifconfig output in Linux is a bit messy, including both the physical address information of the NIC, IP address information, and other information, indeed, ifconfig in Linux is a bit messy. If you configure multiple IP addresses on a network card, you cannot use the ifconfig command, but you can only see the last configured master IP address, therefore, the ifconfig command output is not very reasonable. If you want more
In linux, ethtool ethX is used to query Nic and network information. It is recommended that www.2cto.com reference Ethtool to query and set Nic parameters. Summary: ethtool ethX // query ethX network port Basic settings ethtool-h // display ethtool Command help (help) ethtool-I ethX // query ethX network port information ethtool-d ethX // query ethX network port Registration Information ethtool-r ethX // reset ethX network port to adaptive mode ethtool-S ethX/ /query ethX network port receiving
, line status and clock requirements, data encoding and data transmission connector. Such as the most commonly used RS-232 specification, 10base-t Manchester code and RJ-45 belongs to the first layer. All layers higher than the physical layer communicate with it through predefined interfaces. For example, the Ethernet ancillary unit interface (AUI), a DB-15 connector can be used to connect Layer 1 and Layer 2.Layer 2: Data Link LayerProvides reliable
. It consists of the actual interface between the computer and the network medium, can define electrical signals, symbols, line status and clock requirements, data encoding and data transmission connector. Such as the most commonly used RS-232 specification, 10base-t Manchester code and RJ-45 belongs to the first layer. All layers higher than the physical layer communicate with it through predefined interfaces. For example, the Ethernet ancillary unit interface (
pulses or other signals for online transmission. It consists of the actual interface between the computer and the network medium. It can define the electrical signal, symbol, line status and clock requirements.Connector for data encoding and data transmission. Such as the most commonly used RS-232 specification, 10base-t Manchester code and RJ-45 belongs to the first layer. All layers higher than the physical layer passCall an interface defined in advance. For example, the Ethernet ancillary un
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.