[-]
1. Control Register
Protection Control bit
Coprocessor control bit
Cr2 AND Cr 3
2. system address register
Global Descriptor Table register GDTR
Local Descriptor Table register ldtr
Interrupt Descriptor Table register idtr
Task status segment register tr
80386 The following table lists the control registers and system address registers. They are used to control the way of work, control the implementation of the segmentation management mechanism and paging
This article focuses on the algorithms that are extended from the Rabin-Karp Algorithm to the two-dimensional algorithm to solve the two-dimensional pattern matching problem.
Problem:Search for a given m1 * M2 pattern in the composition of a N1 * N2 two-dimensional character. See exercise 32.2-3 in introduction to algorithms.
Analysis:1. First, we will briefly introduce the Rabin-Karp Algorithm.Rabin-Karp is a string matching algorithm. The main idea of Rabin-Karp is to calculate the hash value
("sess_sid", $ sess_sid, $ min );
Return (false );
}
Else {
Return (true );
}
}
#----------------------------------------------------------
# Str2arr-converts a string to a session array
# Parameter ......: string
# Return value...: Global Array (actually session)
# Purpose of this function: convert a string to a session array
# For example, "session [username] = yourid session [userpass] = 12345"
# Will be converted to the following array
# Session [username] = "yourid"
# Ses
(true);
}
}
# ----------------------------------------------------------
# Str2arr-Converts a string into a session array
# parameters .....: string
# return value ...: Global array (in fact, session)
#本函数用途: Converting a string into a session array
#如 "session[username]=youridsession[userpass]=12345"
#将会被转换成下面的数组
# session[username]= "Yourid"
# session[userpass]= "12345"
#请注意函数split (), each (), list (), eval () usage.
# ----------------------------------------------------------
session Array# Parameter ......: string# Return Value...: Global Array (actually session)# Purpose of this function: convert a string to a session Array# For example, "session [username] = yourid session [userpass] = 12345"# Will be converted to the following Array# Session [username] = "yourid"# Session [userpass] = "12345"# Note the usage of functions split (), each (), list (), and eval.#----------------------------------------------------------Function str2arr ($
minimize the damage to the original environment due to abnormal recovery? Backup the core system tablespaces, data file headers, redo File,control file, Because this is not a simple copy operation, so the backup statement generated at the same time, also generate a RESTORE statement, must not generate a backup statement, no recovery statements, resulting in the back of the restoration of the difficulty of the site increase.
Unable to fully backup Linux/unix database before recovery
Set Lines
);
}
}
# ----------------------------------------------------------
# Str2arr-Converts a string into a session array
# parameters ...: string
# return value ...: Global array (in fact, session)
#本函数用途: Converts a string into a session array
#如 "session[username]=youridsession[userpass]=12345"
#将会被转换成下面的数组
# session[username]= "Yourid"
# session[userpass]= "12345"
#请注意函数split (), each (), list (), eval () usage.
# ----------------------------------------------------------
function Str2arr ($
There are two main types of file processing:
Create, add, or delete data, and read files
Moving, copying, and deleting files
Create a file
There are three ways to create an empty text file (sometimes called a "text stream").
The first method is to use the CreateTextFile method. The following example demonstrates how to create a text file in VBScript in this way:
Dim FSO, F1
Set fso = CreateObject ("Scripting.FileSystemObject")
Set f1 = fso. CreateTextFile ("C:\testfile.txt", True)
To use th
regression forecast of Shanghai stock index
function Chapter14
Tic
Close all;
Clear
CLC
Format Compact;
Load Chapter14_sh.mat;
% Extract Data
[M,n] = size (SH);
TS = sh (2:m,1);
TSX = SH (1:m-1,:);
% data preprocessing, normalization of raw data
ts = ts ';
TSX = TSX ';
[Ts,tsps] = Mapminmax (
()) Val second = integer.valueof (Fields (1). Trim ()) v Al ss = New SecondarYsort (First, second) SS}, True, 1) (new Ordering[secondarysort] {override def compare (x:sec Ondarysort, y:secondarysort): Int = {var ret = X.getfirst-y.getfirst if (ret = = 0) { ret = Y.getsecond-x.getsecond} ret}, Classtag.object. Asinstanceof[classtag[secondarysort]] Retrdd.foreach (println) Sc.stop ()}}The output results are as follows:1 23 45 67 827 812 21120 52220 5320 2131 4240 51150 52250 51
(Np.arange (5), index = dates) grouped = Dup_ts.groupby (level=0). Mean () 2 time series Data filtering: Usage is as follows: Dates = PD. Datetimeindex ([' 2017/06/01 ', ' 2017/06/02 ', ' 2017/06/02 ', ' 2017/06/02 ', ' 2017/06/03 ']) Dup_ts = PD. Series (Np.arange (5), index = dates) Print dup_ts[datetime (2017, 6,2)] Print dup_ts[' 2017-06-01 ': ' 2017-06-02 '] print dup_ts.truncate (after= ' 2017-06-01 ') 3 frequency converts a sequence to a fixed-frequency format by interpolation. Use the r
/// ///returns the last day of the month of a year/// /// year /// Month /// Day Public Static intGetmonthlastdate (intYearintmonth) {DateTime Lastday=NewDateTime (year, month,NewSystem.Globalization.GregorianCalendar (). Getdaysinmonth (year, month)); intDay =Lastday.day; returnDay ; } #endregion #regionTime and minute seconds/// ///time and minute seconds/// Public Static intTimetosecond (intHourintMinuteintsecond)
;Private Float myfloat;Private Double mydouble;Private BigDecimal mydecimal;Private String mytext;Private String mytext;Private Date mydatel;Private Time mytime;Private Date mydatetime;Private Timestamp mytimestamp;Private byte [] mybinary;Private Blob myblob;Private Datamap () {}// Constructor// Getter... setter omitted}The ORM ing file datamap. hbm. xml of the Datamap table and Datamap class
standard protocol directives but instead handles HTTP headers from upstream servers in a special way, and we use the method ofWhen you send a header message, carry the URI of the previous X-accel-redirect property, and when Nginx receives the message header, discovers that it has the X-accel-redirect attribute, then it will be treated asA normal request (similar to a browser-access Nginx) uses the URI that is carried behind it and the location in the current Nginx configuration file to match, a
Http://blog.csdn.net/langeldep/article/details/8603045What are the advantages of m3u8?
After searching online, you may have different opinions. My personal understanding is that you can adapt to multiple bit rates. Based on network bandwidth, the client selects a file suitable for the bit rate for playing, ensuring the smoothness of the video stream.
In iOS device and Mac, HTTP can be used for distribution, where playlist is a standard m3u8 file extended by M3U, and the media file is a MPEG2-
.
Receive a stream described by an SDP File% VLC-vvv http://server.example.org/stream.sdp
3. VLC sends a stream under the command line
% VLC-vvv video1.xyz -- sout UDP: 192.168.0.42 -- TTL 12Where: * video1.xyz is the file you want to stream,* 192.168.0.42 is either:The IP address of the machine you want to unicast;Or the DNS name the machine you want to unicast;Or a multicast IP address.* 12 is the value of the TTL (time to live) of your IP packets (which means that the stream will be able to c
portability of the database, but hibernate also provides the use of native SQL query method, You just need to get a connection.Eg. In the following example, a native SQL statement in the SQL Server database is used, as follows: String timeunit = "13";String sql = "SELECT COUNT (*) count, CONVERT (VARCHAR (" + Timeunit + "), log.gen_datetime,121) Timeunit" + "from log log";SQLQuery query = session.createsqlquery (SQL). Addscalar ("Count", Hibernate.integer). Addscalar ("Timeunit",hibernate.strin
the timespan value calculated in seconds.
Subtract: Subtracts another timespan value from it.
Ticks: Returns the number of tick for the timespan value.
Totaldays: Returns the number of days that the TimeSpan value represents.
Totalhours: Returns the number of hours represented by the timespan value.
TotalMilliseconds: Returns the number of milliseconds represented by the timespan value.
Totalminutes: Returns the number of minutes represented by the timespan value.
TotalSeco
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