). OTG devices are fully compliant with the USB2.0 standard and provide a host of detection capabilities that support the Host Orders Protocol (HNP) and the dialog request Protocol (SRP). In OTG, the initial host device is called a device, and the peripheral is called a B device. The initial role can be determined by how the cable is connected. Figure 1 shows that the default host is determined with the 5th ID pin, and the dual-use device uses the new
retains all the features of the USB2.0. OTG enabled 2 USB peripherals to communicate directly without having to leave the PC. To achieve such a feature, there is a new concept in OTG-dual-function devices (Drd:dual-roledevice). 1 DRD can meet the following characteristics:Have a certain USB host capability and provide a list of 1 peripherals;Full speed operation (or fast operation) as a peripheralSupports full speed operation (low or fast) as a master control machineSupport for Host Negotiation
without the PC. To implement such a function, there is a new concept in OTG-dual-function device (DRD: Dual-roledevice ). One DRD can meet the following requirements: ● Has certain USB Host capabilities and provides a list of peripherals; ● Full-speed operations (or quick operations) can be performed as peripherals ); ● As the master machine, it can support full speed operations (low speed or fast) ● Supports host negotiation protocol (HNP) and Session Request Protocol (
this directory, create it).Modify NGINX Site ConfigurationHere is an SSL partial configuration for a newer version of NGINX, add it to the section in the site configuration file server , and modify it according to the comments and your needs.Listen 443 SSL;#Listening Ports#Listen [::]:443 SSL Ipv6only=on; # If you want to listen to IPv6 at the same time, cancel this line commentserver_name example.com; #please change to your domain namessl_certificate/ETC/SSL/PRIVATE/EXAMPLE_COM.BUNDLE.CRT;#Cer
The operation results are as follows:Save the file as "Jiangwenmin", there is code/20135112The corresponding Java code is:(iii) Preliminary design patternS.O.L.I.D PrinciplesObject-oriented three elements are "encapsulation, inheritance, polymorphism", and any object-oriented programming language will support these three elements syntactically. It is very difficult to use the three elements, especially polymorphism, with the help of abstract thinking, and the S.O.L.I.D design principle is
number of special RSS 2.0 files, such as the following site://site:http://www.csdn.net/rss/rssfeed.aspx? Rssid=1bigclassid=1426//is not normally loaded in accordance with the normal. Further processing is required. Like some. NET temporarily unsupported encoding, currently can read the known RSS 2.0Rssurl = "Http://soft.yesky.com/index.xml";System.Net.WebRequest WR = System.Net.WebRequest.Create (Rssurl);System.Net.WebResponse SRP = wr. GetResponse (
Next s.i = "☆[os]" S.I = "┏━━━━━━━━━━━━━┉" for all tempobj in WMI. InstancesOf ("Win32_OperatingSystem") with tempobj s.i = "Label:" . Caption s.i = "┇CSDV:" . CSDVersion s.i = "┇ version:" . Version s.i = "┇ram recognition:" . totalvisiblememorysize/1024 "MB" S.I = "┇ram available:" . freephysicalmemory/1024 "MB" End with Next s.i = "┗━━━━━━━━━━━━━┉" OS = S-End Function function Board () on Error Resume Next s.i = "☆[motherboard]" S.I = "┏━━━━━━━━━━━━━┉" for each tempobj in WMI. InstancesOf
English Original:Top 6 Refactoring Patterns to help your Score 80% in Code Quality
In the past to do a lot of code in the daytime, found some code quality more common problems, the following is the top five :
bloated class :Classes are bloated because developers lack the understanding of the most basic coding principles, the "single Responsibility Principle" (SRP). These classes tend to become bloated because different and functionally missing methods
personalized applications, as well as independent software vendors or other third-party organizations to create new solutions for vertical sub-sectors.
3,SAAS(Software as a service, software as a service) is the most mature and famous, and also the most widely used cloud computing. You can think of it as a software distribution mode. In this mode, the application software is installed in the vendor or service supplier, and users can use the software through a network, the common network is the
for trust, privacy, long-term security, etc.
Adopting portable information formats: Even with the advent of XML and the countless XML standards for vertical and horizontal data formats of almost every description (OpenDocument being just one tiny but important example ), online Software generally doesn' t use open methods today and rarely supports storage of data in widely recognized formats (there are exceptions here too; writely does a pretty good job writing files out in Word format, proba
The global cloud computing industry is growing rapidly. With the popularization of social networks and the help of cloud computing in information flow and sharing, cloud socialization will undoubtedly become a hot topic in the future. In summary, cloud computing will show six major trends in the future.
1. Cloud computing will be everywhere driven by the Mobile Wave
Driven by mobile devices such as mobile phones and tablets, the market demand for cloud computing will grow further. Every applicat
box's web page, or even create a basic text document. As with other storage services, you can also download desktop applications to synchronize files between the hard drive and the cloud.
Box will also give you a lot of privacy control. For example, you can decide who can browse and open scheduled folders and files, and who can upload and edit documents. You can even use a password to protect a stand-alone file, or set a expiration date for a shared folder.
Business users can also connect the
At present, the concept of SAAS applications in China is gradually increasing, and more ISVs and Si are transforming in this direction. However, compared with SaaS application providers that are relatively successful in the U.S. market, Salesforce, ecollege, netsuite, china still lacks a sound SaaS application brand. Although xtools, 800crm, and Abacus have already held a place in the SAAs market, they still do not occupy the market in a large scale.
"Cloud" storage provider Box.net has received a new round of financing of $50 million from investors such as Salesforce, according to foreign media reports September 29.Box.net past investors have also been involved in a new round of financing. Finally, under the leadership of the CRM giant Salesforce.com, Box.net finally received $50 million in new investment funds. Box past investors include Andreessen Horowitz, Draper Fisher Jurvetson, emergence capital Partners,meritech Capital Partners, sca
, and manage it. All this is done by the organization that provides the SaaS software.
Multi-tenancy is the key to achieving a successful SaaS
Although the ability to subscribe to an application has minimally met the basic conditions of SaaS, it still does not meet the requirements in practice. In fact, the SaaS application must also be a multi-tenant application.
In the final analysis, it is related to economic factors. The CEOs of major SaaS companies agree that without mult
largest management software vendor whose products involve finance, inventory management, logistics, sales and marketing. Earlier, the company has invited more than 100 companies to participate in the browser version of the software test. The company also said it would invest 500 million of dollars in the A1s project by the end of next year.
SAP will become a competitor for Salesforce.com and NetSuite, where NetSuite's big shareholder is Ellison, Ora
OpenSSL updates nine Security Questions
06-Aug-2014: Security Advisory: nine security fixes
Https://www.openssl.org/news/secadv_20140806.txt
OpenSSL 0.9.8 DTLS users should upgrade to 0.9.8zbOpenSSL 1.0.0 DTLS users should upgrade to 1.0.0n.OpenSSL 1.0.1 DTLS users should upgrade to 1.0.1i.
OpenSSL TLS Protocol Downgrade Attack (CVE-2014-3511)========================================================== ==================Defects in OpenSSL SSL/TLS server code may cause server negotiation.The Clien
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