for reconstruction. Do not refactor the code that you do not intend to change or will not change.
Scratch Refactoring)
Michael Feather's "Working processing tively with Legacy Code" book mentions the concept of Scratch Refactoring. Martin Fowler calls it "Refactoring for understanding ". This is used to deal with the (or intolerable) code that you don't understand and clean it up so that before you actually want to modify it, you can have a better un
of changes, the latest play is group control. Although so much of the enterprise can not grasp how to absorb the key point of powder, how to convert.Thor Micro-control principle is to use a computer to control a number of mobile phones up to 100, a person can easily control add powder, make friends circle. This software also conforms to the market trend, with the labor cost gradually become higher, marketi
language can simply repeat a task. bash is a shell, with a friendly interface, more easy to operate, more convenient to users, command completion function: Usually when you enter a command under bash (or any other shell), you don't have to lose the command to the shell to determine the command you want to enter. bash Another way to make command input easier is to use wildcards in commands. Bash supports
With the development of the network, VoIP services and unified communication platforms become more and more important. The SIP protocol is an exciting focus. Some may ask, what is the SIP protocol? What's better about it? Here we will go into more details.
The Chinese meaning of the SIP protocol is the process initiali
What is EF? (EF basic series 2) What is ef?Background of EF: Write ADO. NET data access code is dull and boring, so Microsoft provides an object relationship ing framework (EF ), EF can automatically help our program to generate r
: 135Services: Location ServiceDescription: Microsoft runs DCE RPC end-point Mapper for its DCOM service on this port. This is similar to the capabilities of UNIX 111 ports. Services that use DCOM and RPC use the end-point mapper on the computer to register their location. When remote clients connect to the computer, they look for the location where the end-point mapper find the service. Hacker scan the com
calling convention (calling convention), determines the following:A. The stacking order of the function parameters.B. The arguments are popped by the caller or by the caller.C. And the method that produces the function decorated name.Common calling conventions are __stdcall,__cdecl,__fastcall. 1) __stdcall. Standardcall 's abbreviation, agreed content:A. Parameters are pressed from right to left onto the stack.B. The function is called by the caller t
you of it.Other non-Microsoft browsers, such as Firefox, are experiencing cross-domain access, and the solution unification is denial of access.A few possible scenarios:1, the way of Web Proxy. That is, when a user accesses a site, cross-domain access requests to the B site are submitted to the specified page of site A, which
ManagedCode(Managed code ): Code executed by the Common Language Runtime Library environment (rather than directly by the operating system. Managed code application
Program You can obtain the Common Language Runtime library service, such as automatic garbage collection, runtime database type check, and security support. These services help provide unified managed code application behavior independent of platform and language.
Unmanaged code-unmanaged code : Code directly executed by the opera
What is the difference between the sleep () method of the thread class and the Wait () method of the object that allows the thread to pause execution?The Sleep () method (Hibernate) is a static method of the thread class (threads), which causes the current thread to pause execution for a specified time, giving the execution opportunity (CPU) to another thread, bu
What is a VPN?
The English full name of the VPN is "virtual private network", translation comes from "The fictitious specialized network". As the name suggests, virtual private network we can understand him as a virtual out of the enterprise internal line.
This VPN's English full name is "Virtual private network"
When learning network protocols, we need to pay attention to the concepts and applications of DHCP protocols and DHCP servers. So what about DHCP? Next, let's take a look at the basic concepts of DHCP.
1. What is DHCP?
Dynamic Host Allocation Protocol (DHCP) is a standard TCP/IP protocol that simplifies Host IP Address
thatDatabase recovery will take place after the system crashes.Transactions that are used to restore and revoke a system crash in an active stateThe impact on the database,Thus guaranteeing the atomicity of the transaction.The system changes any actual data on the disk beforeThe information that modifies the operation information itself is logged to disk.When a crash occurs,The system was able to record the event according to these operations. The st
What is a real estate certificate?China's real estate registration was officially implemented on January 1, March 1, 2015. The real estate registration book certificate and real estate registration certificate formulated by the Ministry of Land and Resources were officially launched. After the new real estate register certificate is enabled by the real estate
you of it.Other non-Microsoft browsers, such as Firefox, are experiencing cross-domain access, and the solution unification is denial of access.A few possible scenarios:1, the way of Web Proxy. That is, when a user accesses a site, cross-domain access requests to the B site are submitted to the specified page of site A, which
sequence of a large-scale adjustment. If it is object-oriented, only with the change of the Board object on the line, the board system to save black and white on both sides of the game, simple backtracking can be, and the display and rule judgment is not to be taken into account, while the entire function of the object call sequence has not changed, the change
Tags: SQL Server Agent ServiceThe SQL Server Agent Agent service, a standard service for SQL Server, is an agent that performs all of the automation tasks for SQL, as well as unattended tasks such as database transactional replication.This service is stopped in a default installation, needs to be started manually, or automatically moving, otherwise SQL automation tasks will not be performed, and the startup
Word. NET Coreis the operating platform (platform),. NET Standardis a series of programming interfaces (a set of APIs).. NET Core. NET in the world, it turns out that only the . NET Framework: NET is managed code, and the common language runtime (Common Language runtime,clr) converts IL code into machine code when the program is running. From version 1.0, which started in 2002, to the latest version of 4.7,
, Access ...... The number of people taking Microsoft certification exams, MCSE and MSDE, is endless, and the exam tutoring classes are labeled as "280 yuan. The exam reference materials are even more expensive. some computer bookstores use Microsoft Press on both shelves. I have a student who takes the certification exam. each exam requires more than 200 yuan, a
validation mechanism for UAC
How to turn off UAC:http://www.duote.com/tech/8/21192.html
What is the difference between security levels:
Protect Win7 security have to say UAC, as we all know, UAC is the acronym for User Account Control, which is translated as a new
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