cwdm splitter

51-table relationship one to one Many-to-many relationships between 52-tables One of the 53-table relationships to multiple 54-Table Relationship Summary 55-orm generating an associated table model 56-one-to-many add records for multi-table operations 57-Multi-pair multiple table operations add records 58-based on one of the object cross-table queries on multiple 59-one-to-one query based on object cross-table 60-many-to-many queries based on object cross-table 61-SQL stateme

withstand, frequent creation, destruction of threads also consumes system resources. 2. Camouflage Asynchronous Programming ModelA one-to-one TCP connection service is a waste of resources, and in order to improve this, you can use the thread pool to manage these threads and why it is pseudo-async, because there is no change in the thread-pool threads as well as on-the-go services. The use of thread pool knowledge can effectively control and constrain resources.Pseudo-Asynchronous IO programmin

withstand, frequent creation, destruction of threads also consumes system resources. 2. Camouflage Asynchronous Programming ModelA one-to-one TCP connection service is a waste of resources, and in order to improve this, you can use the thread pool to manage these threads and why it is pseudo-async, because there is no change in the thread-pool threads as well as on-the-go services. The use of thread pool knowledge can effectively control and constrain resources.Pseudo-Asynchronous IO programmin

size between two regions by splitting the bars, such as the navigation area and the file list area in the Explorer, and you can change the size between the two regions by splitting the bars. In Ext JS, of course, this function is not less, and in the border layout, is implemented by the functional component Ext.resizer.BorderSplitter, whose parent class is Ext.resizer.Splitter, and Ext.resizer.Splitter is derived from ext.component. The function of Ext.resizer.BorderSplitter is to render a

data, common situations are the live source filter of the WDM model acquisition card. The so-called Pull Mode means that the source filter does not have the ability to send its own data. In this case, generally, the source filter is followed by a parser filter or splitter filter. This filter generally has an independent sub-thread on the input pin, which is responsible for continuously obtaining data from the source filter, after processing, the data

Effective Area and low dispersion maintenance, and its PMD value is extremely low, so that the capacity of the existing transmission system can be easily upgraded to 10 ~ 40 Gbit/s, and easy to use Distributed Raman effect amplification on optical fiber, greatly extending the optical signal transmission distance. 2) New Low-peak optical fiber for man Communication In the metropolitan area network design, you must consider simplifying devices and reducing costs, and consider the possibility of n

DirectShow uses a modular architecture, where each stage of processing is done by a COM object called a filter. directShow provides a set of standard filters for applications to use, and developers can write their own custom filters that extend the functionality of DirectShow. to define strate, here are the steps needed to play an AVI video file, along with the filters that perform each step: Read the raw data from the file as a byte stream (File Source Filter ).Examine the AVI headers, and pars

Day Starting point: teach you to do keyword matching project (search engine)----first day Review: Hand-taught you to do keyword matching project (search engine)----19th Day Words small handsome in order to solve the word segmentation algorithm wrote the first edition, he showed to the eldest brother, was asked to rewrite. There are several reasons for this: 1. How to test and test data? 2. Splitter do too many things? 3. Dress XXL skirt Dress What ab

I plan to record examples of FFMPEG-based Encapsulation Format processing. Including separation, reuse, and Encapsulation Format Conversion of audio and video. This is Article 2nd. This document records a video/audio Splitter (simplest FFMPEG demuxer) based on FFMPEG ). The demuxer separates the compressed video data (for example, H.264) and compressed audio data (for example, AAC) in the encapsulated format data (for example, MKV .. Encoding and dec

communication and CATV access cable Resources in the residential area belong to all operators. Another feature of China's FTTH target market is the existence of industry barriers in the telecom business: telecom operators are not allowed to operate CATV services, and this situation cannot be changed for quite some time in the future. 2. Selection of FTTH Optical Fiber Access Technology in China1) Passive Optical Network (PON) problems faced by FTTH application in China 1. PassiveOpticalNetwork-

Transferred from: http://www.cnblogs.com/cbscan/articles/2107494.htmlTwo IO multiplexing scenarios: Reactor and ProactorIn general, the I/O multiplexing mechanism requires event Demultiplexor [1, 3]. The role of event sharing, will be those who read and write event source distributed to the processing of read and write events, like the delivery of a courier downstairs shouting: Who sent something, come and take it. The developer needs to register the event of interest at the beginning, and provi

(texttop)//Right SiderSplitterright: =widgets. NewQSplitter2 (core. Qt__vertical, Splitterleft) Textright:= Widgets. NewQTextEdit2 ("Right Text", Splitterright) Textbuttom:= Widgets. NewQTextEdit2 ("Lower Text", Splitterleft) splitterright.addwidget (textright) splitterright.addwidget (textbuttom) splitterLeft.SetWi Ndowtitle ("Splitter") Splitterleft.show () widgets. Qapplication_exec ()} Specific code I will explain later, now we compile Qtdeploy B

(1). SplitContainer cannot be clicked directly by the mouse, and can be selected by right-clicking and selecting SplitContainer.(2). The issplitterfixed property is used to set whether the splitter can be moved.(3). The Fixedpanel property is set to Panel1 (or Panel2) so that the size of the Panel1 panel (or the PANEL2 panel) is not changed by default when the form is resized, and if set to none, The Panel1 panel and the Panel2 panel are scaled propor

() #从文件中逐行读取字符 Data_list=data.strip (). Split (', ') #将字符间的空格清除后, separating the characters with commas return ({ "name": Data_list.pop (0), "Date_of_birth": Data_list.pop (0), "Times": Str (sorted (Set ([Modify_time_format (s) for s in Data_list]) [0:3]) }) #使用字典将关联的姓名, date of birth, time key and value are stored and returned except IOError as Ioerr: Print (' File Error ' + str (IOERR) ) #异常处理, print error return (None) #定义函数modify_time_format将所有文件中的时分表达方式统一为 "minute. Seconds" def m

distribution, its main characteristics are: Optical Line Terminal-OLT) placed in the telecom operator center machine room, no source Optical Splitter placed Splitter) optical Network Unit-ONU), the Optical Network Unit of the user end ). The distance between the OLT and The ONU is equal to the distance from the telecom operator's central data center to the user. The distance between the OLT and The ONU is

business: telecom operators are not allowed to operate CATV services, and this situation cannot be changed for quite some time in the future. 2. Selection of FTTH Access Technology in China1) Passive Optical Network PON) problems in FTTH application in China ideal Passive Optical Network-PON) Network structure and distribution, its main features are: optical Line Terminal -- OLT) is placed in the telecom operator's central data center, and the passive Optical

isolation of FTTP networks poses two major challenges to technicians. First, once the OTDR tracking signal encounters a splitter in the fdt, it is difficult to transmit the signal from CO. Therefore, the technician must access the network at the FDT. If all FDT connection points have been fused, the weld line needs to be opened by the welder. After tracking, the splitter must be refused to the allocated op

mode as treeView2829 QObject: connect ( treeView, SIGNAL (doubleClicked (QModelIndex), listView, SLOT (setRootIndex (QModelIndex); // when double-clicking a tree node, expand all the files in the selected directory in the form of list30 QObject: connect ( treeView, SIGNAL (doubleClicked (QModelIndex), tableView, SLOT (setRootIndex (QModelIndex )));3132 QSplitter * splitter = new QSplitter;33 splitter-> a

Source code:Http://download.csdn.net/detail/nuptboyzhb/4221531 Csplitterwnd class The csplitterwnd class provides a splitter window, which contains multiple panes. The pane is usually an application-specificCviewDerived object, but it can also be any cwnd object with an appropriate subwindow ID. A csplitterwnd object is usually embedded into a cframewnd or javasichildwnd parent object. Follow these steps to create a csplitterwnd object: 1.

Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Public static class EnumerableExtension { /// /// Concatenates the list elements into strings separated by splitter /// /// /// Concatenated string: /// /// Attributes of the spliced object: /// /// Spliced enumerated values: /// /// Splicing enumeration Name: /// /// /// /// /// /// /// Public static string Montage { StringBuilder result = new Stri