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Python day 4, quit smoking day 4 Today is a hurdle, and it gets stuck when making a level-3 menu. For concise code, recursive functions are required! However, with the help of the students and teachers, the solution was solved! Job Requirements: Level 3 menu:1. Run the program to output the first menu2. Select a level-1 menu and output level-2 menus. Similarly, level-3 menus are output.3. Save menu data in a file File operations have not yet been learned. For the time being, do the following:, a
integrity test, through infection system files (such as Explorer.exe,userinit.exe,winhlp32.exe, etc.) to achieve covert start-up, through the reduction of system software caused a large number of Internet users infected with the virus, The system cannot be secured by a restore. 18. Earthquake net (stuxnet,2009-2010) The network is a Windows platform for industrial control system computer worm, it is the first to destroy the real world, rather than the virtual world computer virus, using the
short message, four is through the multi-channel SMS Special equipment (GSM modem pool) Send short message. In general, the first method has the advantages of fast transmission, successful rate and high reliability. is preferred, followed by the fourth way. But obviously these two methods are not our ordinary people can contact, let alone DIY, so, today I want to introduce the method is the third, the use of mobile phone built-in Gsm-modem build SMS platform. Let me start by introducing my deve
-pass works in half duplex mode, and only one person at a time can speak. As early as 2003, Nokia, Motorola, Siemens and Ericsson 4 have jointly developed a PTT open standard and submitted to OMA (Open Mobile Alliance).17. The problems that OMA faces1, compared to the network standardization, the apparent lag in the standardization of the business area contrasts with the high standardization of telecommunications networks and technology, where standar
-512k, and any device that supports CLDC1.0 must strictly satisfy the definition and cannot have optional or ambiguous functions.CLDC1.0 is defined for devices with very limited computing power, supports only integer operations and does not support floating-point operations, and most early Java phones support CLDC1.0, such as Nokia 3650,siemens 6688i.CLDC1.1 adds floating-point operations, so you can use float and double variables on devices that supp
. Education, school and work experience is a way to prove the ability of candidates, but the most fundamental is the applicant's experience, ability and skills are suitable for their position, find their own position. "Siemens Human Resources department has a clear ' talent quality model ', it includes 3 aspects, one is knowledge, two is experience, three is ability. Knowledge includes professional theoretical knowledge and business knowledge, market
In industrial control projects, PLC is generally necessary, on-site control is generally at its core, and PC systems generally only play the role of remote monitoring, graphics and data storage. In addition to the PLC, PC and PLC communication between, general some intelligent display module (such as the different types of touch-screen HMI system) and PLC communication, we will put the host. NET MF System to create a simple HMI system, REMOTE Control PLC. General foreign each PLC factory, its c
SIMATIC WinCC device information leakage Vulnerability (CVE-2015-1601)SIMATIC WinCC device information leakage Vulnerability (CVE-2015-1601) Release date:Updated on:Affected Systems: Siemens SIMATIC WinCC (TIA Portal) Description: CVE (CAN) ID: CVE-2015-1601Siemens simatic step 7 TIA Portal is the engineering software of SIMATIC products.A security vulnerability exists in versions earlier than Siemens
Virtualization Unified Messaging (UM) refers to the combination of e-mail, voice, and fax in the same mailbox. Unified Communication (UC) integrates UM with conference, cooperation, and attendance management, they present more possibilities of virtualization. For IP technology, UM and UC functions are similar. UM and UC servers are not constantly busy, so they are not fully utilized during the operation cycle. Virtualization can be applied to UM and UC support. VoIP virtualization platform As I
In response to the call of www.j2medev.com webmaster mingjava, I would like to share my experience with you. At the same time, www.j2medev.com welcomes original articles from experts.A few days ago, he saw tony publish his learning work on csdn "60 s for a man". He thought that although his creativity was simple, he was very playable. He was an entry-level classic in learning how to create mobile games, as a result, tony's image is still used for learning. If you are interested in this game, con
Practical examplesHere is an example of the Siemens PLC, so the first step is to create a connected encapsulation class, in addition to implementing the interface, you need to define the actual connection object. public class SiemensConnector:HslCommunication.Algorithms.ConnectPool.IConnector {#region construction method Pub Lic Siemensconnector (String ipAddress) {siemens = new HslCommunication.P
BACnet means that the basic functional unit represented by the same object can be reused in the BACnet Building automation system and can be addressed. The Instance range of each object is 0-4194303, and the range of 0 to 4 million allows BACnet to form an oversized system. BACnet uses attributes to describe the state of an object. The more properties an object has, the more performance the object displays. The properties of an object are recognized and accessed on the network by each other.BAC
Transferred from: http://www.dndev.com/Profibus/profibustr/system_4.htmlIntroduction: in order to make more contact with the Profibus system, the network architecture of Profibus and the system operating mechanism have a whole understanding, the author according to their own experience in writing this article, We hope to lead readers to the world of Profibus quickly. The system used in this article is a Siemens S7 CPU, plus et200m with AI and DI modul
-","scooter","sec-","sendo","sgh-","sharp","siemens","sie-","softbank","sony","spice","sprint","spv","symbian","tablet","talkabout","tcl-","teleca","telit","tianyu","tim-","toshiba","tsm","up.browser","utec","utstar","verykool","virgin","vk-","voda","voxtel","vx","wap","wellco","wig browser","wii","windows ce","wireless","xda","xde","zte"); $is_mobile = false; foreach ($mobile_agents as $device) { if (stristr($user_agent, $dev
: Siemens ' 3D modeling software is powerful and comprehensive. Solidedge: The same belongs to Siemens, the direct competitor SolidWorks, the modeling method is simple, the software to the computer performance requirements are very high, low-profile computer may be a bit of a lag. PRO/E:PTC Company's 3D modeling software, the most modest.In addition, there are some non-mainstream software, such as i
The project has a preliminary understanding. This paper introduces some basic concepts in software engineering, several stages of development, the particularity of software engineering, the target, and the connection and difference between engineering and computer science.As a new subject, software engineering is a bridge connecting computer hardware and traditional mechanical engineering. At first, what I think of software engineering is simply programming, through the algorithm to achieve the
motherboard. That is, the motherboard does not have a mechanical fan, using heat sink heat.(2) Screen fuselage integrated design, and select the touch screen.(3) Internal discarded mechanical hard disk, using anti-vibration flash-type solid-state drive. Avoid the most sensitive parts inside the industrial computer.(4) power supply person plus D C d C DC voltage regulator module.RELATED links:http://www.beijingkde.com/ Crane Safety Monitoring and management systemhttp://www.bjlidao.com/ commerci
Conpot is an ICS (Industrial control System) Honeypot designed to collect attackers ' attack methods and motivations for industrial control systems. This article is mainly used to illustrate some of the configuration related to Conpot user customization. (See the original in English: Https://github.com/mushorg/conpot/blob/master/docs/source/usage/usage.rst)The conpot comes with a default configuration file that enables the simulation of Siemens S7-200
" The United States "Cyber weapons" research has more than 2000 kinds of, among the most notable is that the "Earthquake network" virus is the world's first dedicated to industrial control systems written by the destructive virus, known as "network space precision guidance weapons." It can exploit the vulnerabilities of the Windows system and Siemens Simatic WINCC system to attack. Attack Siemens control s
enterprises, there are small businesses, the perfect solution to each MES project data acquisition problem, the solution of these problems benefited from my years engaged in embedded software development, multi-port Communication server development, large-scale PLC control system development, intelligent control terminal development, etc. So summarizes the following points about data acquisition aspects of the implementation method: First, the PLC class: using C # or C + + Direct programming ac
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