prtg overview

I. Overview of DHTMLAbout DHTML-dhtml:dynamic HTML, Dynamic HTML, not a technology, standard, or specification, but a Web page technology, language standard integration of the existing, to create a re-download can still be able to change the effect of page elements in real time page design concept-Features of DHTML-Dynamically changing page elements-Interact with users, etc.-The DHTML object model includes BOM and DOM650) this.width=650; "src=" Http:/

Overview of the Use keyword in PHP, phpuse keyword overview Many open source systems, such as the oscommerce framework, will find the use of this keyword in their source code, such as the oscommerce framework in the index.php file appears in the source code: Use Oscommerce\om\core\autoloader;use oscommerce\om\core\oscom; In fact, PHP's use keyword was introduced from the php5.3 version above. Its role is t

Java NIO (I) Java NIO overview, javanio Overview Java NIO consists of the following core components: Channels Buffers Selectors Although there are many classes and components in Java NIO, in my opinion, Channel, Buffer and Selector constitute the core API. Other components, such as Pipe and FileLock, are only tool classes used together with the three core components. Therefore, in the

Java NIO: NIO overview, javanio Overview Java NIO: NIO Overview I talked about several IO models in the previous blog. Now we start to enter the Java NIO programming topic. NIO is a new API provided in Java 4 to solve traditional IO problems. This article introduces several basic concepts of Java NIO. The following is the directory outline of this article: I. Sev

I. Overview of SQL statements(1) SQL is a " Structured Query Language (structured Language)".SQL is the standard query language used by most mainstream database systems.(2) The advantages of SQL statement: The language structure is simple, powerful, simple and easy to learn. (3) SQL development is for easier access to the relational database, so SQL can run the following operations:① querying data from the database② inserting data into the database③ d

[Programming] TCP overview, programming tcp Overview TCP Overview 1. TCP provides a connection-oriented and reliable byte stream service. 2. Two applications exchange byte streams consisting of 8-bit bytes through TCP connections. 3. Each TCP header contains the source and target port numbers, which are used to find the initiator and receiver application processe

MVC divides a web application into three parts: model view and controller. The ASP. net mvc framework provides an application based on mvc that can replace asp.net web forms. ASP. net mvc overview-advantages of mvc: 1. By dividing a project into model view and controller, complex projects are easier to maintain. 2. The view state and server form controls are not used to control application behavior more conveniently. 3. The application uses the contro

MySQL Database System Overview, mysql database Overview Understand the MySQL database management system as follows:I. Database-based PHP ProjectCurrently, dynamic websites are all based on databases and use the database management system to manage website content.Users, columns, images, articles, and comments are stored in the database.XSCMSUsersClumnPicArticlesCommtentsIi. Why MySQL (

Overview of Oracle DB partition features Overview of Partitions Overview: in Oracle databases, partitions can break into very large tables or indexes into small, manageable blocks ), these blocks are called partitions ). each partition must have the same logical structure, such as the column name, data type, and constraints. However, each partition can have its

Overview of vro principles, Overview of vrouters I. Principle Overview Vro is one of the most common network devices. This article briefly describes its working principle: 1. Table: When the IP address is configured on the vro port, a direct connection route entry is automatically formed. Then, no matter Static Routing or dynamic routing protocol is used, route e

Atitit. cross-platform gui overview, atititgui Overview Atitit. cross-platform gui Overview Why cross-platform gui For international cross-platform GUI programs, except for large projects such as Firefox that will rewrite the interface, most small and medium projects use GTK + or WxWidgets. After all, it is difficult to unify the two interface styles. Exist