by ATMEL. It is based on the ARM920T core and can process up to 200 MIPS, at the same time, the processor is configured with USB, Ethernet, infrared serial port supporting RS485, IIC, SPI, SSC, and other output interfaces, which are used to develop embedded products more conveniently.
Note that because many processors have limitations and are not described in the processor technical materials, you must carefully read the processor metric description.
:
Set readyKeys = sel.selectedKeys(); Iterator it = readyKeys.iterator();while (it.hasNext()) {SelectionKey key = (SelectionKey)it.next(); it.remove(); .... .... .... }
If the keyword is acceptable (acceptable), accept the connection and register the channel to accept more events (for example, read or write operations ). If the keyword is readable or writable, the server instructs you that it is ready to read and write local data:
: Disable solid mode.This is useful when you need to update individual files.Will reduce compression ratios normally.
11. "-p" set the password7z a pw.7z *. txt-signature cret
12. Other options:Switch:-sscFunction: Specify case-sensitive mode.Useful for going between Linux and Windows.Default:-ssc-on Windows (insensitive)Default:-scc on Linux (sensitive)
Switch:-sswFunction: Compress locked files.Use if: you have problems with opening files.
Switch:-w
default management address is 192.168.0.100, username and password will not be restored, can also be connected through the serial port through HyperTerminal and telnet into the switch for reset operation. (Note: If the common user password forgotten, only through the super terminal through the Administrator password login, admin password factory set to: admin, and cannot be modified, login, you can directly modify the general user password)tl-sf2108p, tl-sf2109p, tl-sf2808p, tl-sf2216p, tl-sf22
Selectionkey collection using Selectedkeys after receiving the request. 5) Use Selectionkey to obtain channel, selector, and operation types and perform specific operations. Public classNioserver { Public Static voidMain (string[] args)throwsException {//Create Serversocketchannel, listen on port 8080Serversocketchannel SSC =Serversocketchannel.open (); Ssc.socket (). Bind (NewInetsocketaddress (8080));//to bind a port using the obtained ServerSocket
to service-oriented patterns. The most straightforward case is the application of the ISP.Linux can be used to erect isp!The publisher of the Linux Journal SSC (Specialized System Consultants) is based on Linux as the network Dial-up service platform. To become an ISP, you need to have the ability to connect to the Internet, multi-sequence FU-dial services (such as software systems provided by companies such as Cycades, Maxspeed, Gtek, etc.), PPP and
and socket channel. Embodied in the FileChannel class and three socket channel classes: Socketchannel, Serversocketchannel, and Datagramchannel.The code is as follows: //Open SocketchannelSocketchannel sc = Socketchannel.Open( ); Sc.Connect(NewInetsocketaddress ("Somehost", port));//Open ServersocketchannelServersocketchannel SSC = Serversocketchannel.Open( ); SSc.Socket( ).Bind(NewInetsocketaddress (port)); Datagramchannel DC = Datagramch
The following is a 1-2-day study of Shell learning notes
————————-I'm the separator —————————
Hardware to perform, operating between the kernel and the hardware.
The command parser.
Component elements of a shell script
System commands
Text Processing tools (sort, grep, sed, awk ...) )
Variable
Conditional judgment
Circular structure
FunctionShell Scripts Center (
to other parameters. sscanf Syntax: #include int sscanf (const char *buff Er, const char *format, ...); The function is similar to SSCANF () and scanf (), except that the input is read from the buffer (buffer). Sscanf is similar to scanf for input, except for the input source with a fixed string (stdin) usage: % [] means to read a set of characters, if the first character is "^", then the inverse meaning. The string within [] can be composed of 1 or more characters. The null cha
Java NiO provides a set of network APIs that can be used to handle a large number of connections. His basic idea is to use a thread to handle multiple channel.
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PackageGeym.nio;ImportJava.io.IOException
Help file. "-t" optionSpecify a compressed file typeType Switch:-t7zformat:7zExample filename:archive.7z (default option) Type Switch:-tgzipFormat:gzipExample Filename:archive.gzipArchive.gz Type Switch:-tzipFormat:zipExample Filename:archive.zip (very compatible) Type Switch:-TBZIP2Format:bzip2Example FILENAME:ARCHIVE.BZIP2 Type Switch:-ttarFormat:tarExample Filename:tarball.tar (UNIX and Linux) Type Switch:-tisoFormat:isoExample Filename:image.iso Type Switch:-tudfFormat:udfExample filename:d
Netty provides a quick and easy API to build networksOne of my little notes after I studied Netty.
Threading model for NettyNetty using react threading modelThe initialization of the Netty server demo code is as follows
public final class Securechatserver {static final int PORT = Integer.parseint (System.getpro
Perty ("Port", "8992"));
public static void Main (string[] args) throws Exception {selfsignedcertificate SSC = new Selfsignedcer
the inherited class. This looks like a weird one.
>>> class Classa:def Talk (self): print ' This is A talking ' >>> class Classb:def Talk (self): print ' t He is B talking ' >>> class CLASSC (CLASSA,CLASSB): def ctalk (self): print ' C is talking ' >>> C = Cla SsC () >>> C.talk () is A talking 5. Interface-python There is no need to display the definition interface ... Unlike Java, it is not necessary to show what the specified object must contain to
=
Selectorprovider.provider (). Openselector ();
Create a Serversocketchannel, which is a selectablechannel subclass of Serversocketchannel SSC = Serversocketchannel.open ();
Set it to the non-blocking state in order to perform non-blocking IO operations ssc.configureblocking (FALSE);
Give Serversocketchannel the socket binding IP and port inetaddress lh = Inetaddress.getlocalhost ();
Inetsocketaddress isa = new Ine
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