CCP (the common closure principle)
All classes in the package should be closed for changes to the same class nature.
The classes in a package shoshould be closed together against the same kinds of changes. A change that affects a package affects all the classes in that package.
All classes in a package should be disabled for changes of the same type. A change affects a package and affects all classes in the package.
A more brief statement is:
C
COCOS2DX also has a few test items, the 3.2 version is under the Tests folder under the installation directory. The Ccp-tests project contains a lot of usage examples, and beginners can quickly learn the basics of COCOS2DX by familiarizing themselves with this project.I was in the test Cpp-tests project still encountered something, this time to summarize.Enter the Ccp-tests directory to see the same structu
", "only one occurrence in one source file" is allowed. Imagine that if A.H contains the definition of Class A, b.h contains the definition of Class B, because the definition of Class B relies on Class A, so B.h also includes a.h. Now there is a source file, it uses both Class A and Class B, so the programmer in this source file both the a.h included in the, but also the b.h included in the. At this point, the problem is: the definition of Class A has appeared in this source file two times! So t
Half a year five acquisitions Cisco intensive integration for self-redemptionWu MicroCisco, a "takeover guru", recently announced a new deal.The acquisition was Cloudlock, a cloud security company, with a total transaction price of $293 million. This is the fifth takeover deal that Cisco has launched this year.As the world's largest network equipment manufacturer, Cisco
Wireless connection. A firewall capable of supporting advanced applications that can monitor e-mail, im instant Messaging and HTTP traffic, inter-site remote access and dynamic VPN services, including: IP security (IPSEC) VPN (triple Data Encryption Standard [3DES] or Advanced Encryption Standard [AES]), Dynamic multi-point VPN [DMVPN], which supports the board-accelerated group Encrypted Transport VPN and Secure Sockets Layer (SSL) VPN. And with intrusion prevention system (IPS): This depth pa
Internet Operating System (IOS) is Cisco's private core software package, which is mainly implemented on Cisco routers and switches. Cisco IOS software uses a set of value-added technologies and features to provide Internet intelligence.Cisco IOS includes a group of superb network technologies, mainly composed of internet devices such as a single router, it is used to provide shared media hub vro modules, v
From today onwards, let's show a few of the basic features of Cisco UC, one of the first basic features: Cisco IP Phone.The word Cisco CUCM is bull x!Knowing that the CUCM is a ippbx in a cow's lecture, it provides the phone function of the IP phone to replace the traditional analog phone.In fact, know this is a broken cow, but also in the study of Microsoft's UC
"Introduction" is a Cisco with Stackwise Plus? Catalyst? The 3750-E series switches are an enterprise-class, stand-alone, stackable wiring switch family that supports the deployment of secure converged applications and maximizes investment protection based on the development of network and application requirements. By combining A/V and power over Ethernet (PoE) configuration with a Gigabit Ethernet uplink, the Cis
Overview
This product announcement focuses on Cisco®Catalyst®Cisco IOS on 6500 series switches®See Figure 1 ).
The Cisco Catalyst 6500 series, modular with Cisco IOS software, improves operational efficiency and minimizes downtime through continuous evolution of software infrastructure. By running the modular
WIN8 Cisco VPN 442 Error solution/Error Code 442 Cisco VPN Clinet with Windows 8 when you start using win8, because of work needs to use Cisco VPN Client, however, in win8, the Cisco VPN Client reports a 442 Error and cannot be used. The following Error message is displayed: Error Code 442 while connect to VPN server b
With the advent of the Internet era, more and more work and information technology-related, in the requirements of the times, each person's development and employment needs to have the knowledge and quality of the Internet, then in this do not test the certificate of the age, Cisco gold content such a high certificate in the end there is no use? The leading-edge education small compilation uses the data to explain the question.Because our large depart
12000 the Cisco router series is very suitable for small and medium-sized enterprises. Here we mainly analyze the performance characteristics of the Cisco router series. In today's information age, enterprise mail has become an essential tool for business communication and communication. With the new routing technology, enterprise mail also has more and more innovative features.
However, compared with diver
After the popularization of broadband, Cisco wireless router settings are frequently faced. So today, I am going to introduce you to the configuration skills of Cisco Wireless routers. I hope this article will teach you more things and bring convenience to your life.
After broadband popularization, many friends who have multiple computers or laptops want to install wireless hotspots at home. Because they se
Cisco 5000 ATMLANE MOUdle password recovery
Password Recovery Procedurefor the Catalyst 5000 atm lane Module
Description
This document describes the password recovery procedure for the Cisco Catalyst 5000 atm lan emulation (LANE) module(WS-X5153/5154/5155/5156/5157/5158/5166 ).Step-by-Step Procedure
In order to recover a password, you must download a recovery image onto the ATM module that will erase the
CISCO router switch SNMPv2 configuration, cisco Router
Cisco router SNMP Configuration
Snmp-server community CQGASPZW-R RO // ro read-only
Snmp-server trap-source Loopback0 // use the loopbackaddress as the source address of the message sent by the trap.
Snmp-server host 50.1.50.3 version 2c CQGASPZW-R udp-port 9006 // configure the SNMP server IP address, SNMP
Basic configurations of Cisco routers and Cisco router configuration commands
En -- enter the privileged mode config t -- enter the global configuration mode wr (OR) -- save the configuration (otherwise, the configuration fails before the power-off)
1. Set the password for entering the vro Console
In global configuration mode, enter line console 0 --- enter the '0' Interface password 123 -- set the password
Cisco CCNA Chapter 4 answers in the second semester, Cisco ccna second semester
1.
2. All the routers running the Distance Vector Routing Protocol have disconnected all power supplies (including spare batteries ). What happens when these routers are reloaded?
They share all route information stored in NVRAM before the power-off with the directly connected neighbor
"Introduction" Cisco switch Catalyst 3750-e Series production in 2007, the original system is very old, in order to let it out of the spring, we can upgrade its system. Pre-upgrade preparationFirst we need a new version of the Catalyst 3750-e Series Cisco switch ISO file, online searchable to many, here we recommend a 2015-year version of the download link is:Cisco switch Catalyst 3750-E Series ISO (2015)Th
One, Cisco Discovery Protocol (CDP)The Cisco Discovery Protocol (Cdp,cisco Discovery Protocol) enables the collection of hardware and protocol information for adjacent devices for troubleshooting and network judgment.1. Get CDP timer and hold time informationR0#show CDP #查看整个路由器的CDP信息R0#sh CDP Interface #查看每个接口的路由信息2. Set CDP timeR0 #cdp Time 60R0#CDP Holdtime 18
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