Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
The embodiment of the present application provides a kind of application gray scale dissemination method, carries out gray scale hair in gray scale publication environment in advance
Cloth test, and recorded to the switching adjustable strategies that server is formed are operating abnormally in gray scale publication environment, and then according to
The switching adjustable strategies carry out in production environment issuing using gray scale on line, and such server application system, which would not generate, delays
The machine time can guarantee the application request for timely and effectively handling client.It is answered as shown in Figure 1, the embodiment of the present application provides
Include: with the step of gray scale dissemination method
Step 101, it obtains to issue to gray scale and apply.
It in the present embodiment, can be the more new edition such as application newly developed or some application to gray scale publication application
This grade needs application that gray scale is issued on line, to guarantee the stabilization of total system by the way of this gradually transition publication
Property.It can be the device or equipment issued using gray scale for the executing subject of the present embodiment, for laying equal stress on not modifying configuration
Under the premise of opening server application system, realize that gray scale publication application is treated in production environment on line carries out gray scale publication, tool
Body executes step 102 to process shown in 104.
Step 102, application configuration being issued to gray scale, gray scale publication test is carried out in gray scale publication environment.
Wherein, gray scale publication environment is the environment created previously according to production environment on current line.For example, according to
Current actual conditions of production environment on line (including the number that server currently operates normally, each server processing requests
Ability (such as request response time, processing number of requests), announced application version of production environment etc. on line), creation and line
The identical gray scale of upper production environment issues environment, and wherein gray scale publication environment can be understood as the backup ring of production environment on line
Border includes more application servers.
Production environment can be understood as the environment directly facing user on line, and gray scale is in intranet environment and line
One layer of service layer among environment, gray scale publication environment belong to the test environment on line in production environment, can update for application
Service provided by code carries out more added with the test of safety;Gray scale issues environment in addition to code, and produces ring on line
Border is completely the same, and under a possibility that very big, exclusion impacts user service on line.
In the present embodiment, this being waited for, gray scale publication application is tested in gray scale publication environment in advance, if
It goes wrong in test process, can also remedy in time.And the gray scale publication environment of the application is previously according to current line
What the configuration parameter of upper production environment was established, be with production environment on current line it is identical, can guarantee to send out in gray scale in this way
When being tested in cloth environment, actual conditions can be more in line with, keep the result of test more accurate.
In addition, establishing in gray scale publication environment with identical clothes of quantity and configuration in production environment on current line
Business device can will be issued to gray scale in carrying out gray scale publication test process and apply the test run in each server, once it sends out
There is misoperation during the test in some existing server, will be transferred in another server and test.
Step 103, it during gray scale is issued and tested, is recorded in gray scale publication environment to operation exception server
Switch adjustable strategies.
For the present embodiment, in gray scale publication test process, when abnormal transport occurs during the test in some server
Row (such as server delay machine, request response time are greater than certain threshold value), will issue application switching to another operation to gray scale
When normal server, just will record the abnormal server identifier (for example, network protocol (Internet Protocol,
IP) address or device numbering), the information such as time of the identifier of the normal operation server and switching.It transports every time
The abnormal generation server switching of row can all carry out respective record, then according to the time of server switching, switching target in record
Switch adjustable strategies accordingly with information, generations such as transfer sequences.In addition, being operating abnormally in each appearance causes server to switch
When adjustment, the corresponding error code information of abnormal server can also be recorded, for it is subsequent according to the error code to line
Corresponding server is adjusted in upper production environment.
For example, can be all in detection gray scale publication environment to answer by way of sending examination request to application server
Whether can normally be accessed with server, think that application server is operating abnormally if request is unsuccessful;As present gray scale is sent out
There are 8 application servers in cloth environment, if wherein an application server collapses, can be examined by the test mode
Measure that specifically which platform application server collapses, the application server of this collapse will not all receive before normal operation
To application request.In this gray scale publication test process, record which server is operating abnormally, and is then switching to which just
It is handled in normal server, and the specific time of record switching, generates corresponding switching according to these information of record and adjust
Whole strategy.For that can be cut according to the switching adjustable strategies to server when production environment carries out gray scale publication on line
It changes.
It should be noted that gray scale is issued environment and can be issued simultaneously to multiple to gray scale according to the needs of practical business
Using being tested, in test process, each switches adjustable strategies with it to gray scale publication application and corresponded.
Step 104, after gray scale is issued and passed through using test, application will be issued to gray scale and be sent to production environment on line
Gray scale publication is carried out, and executes corresponding server switching adjustment during gray scale is issued according to switching adjustable strategies.
It, can will if applying in gray scale publication environment test there is no abnormal to gray scale publication for the present embodiment
Production environment on line is sent to gray scale publication application and carries out gray scale publication, and is cut every time according to what is recorded in switching adjustable strategies
Time and the sequence of server are changed, the server executed in gray scale issuing process switches adjustment, guarantees used server all
It can normal operation.
For example, setting applies sending time to gray scale publication, it is sometime sent to production environment on line on the day of and carries out
The switching adjustable strategies execute server switching adjustment recorded in the pre- publication test of environment is issued in gray scale publication according to gray scale,
If server a is operating abnormally when testing in gray scale publication environment, the application request that script is needed to be handled by server a turns
It is handled to the server b of normal operation, then according to this strategy, and will be produced on line on line in production environment
The server b that server a application request to be treated is given to normal operation in environment is handled, and can be with subsequent to service
Device a makes requests test, is handled until test is normally given to server a again.
Through the above technical solutions, corresponding switching adjustable strategies can be generated in gray scale publication environment in advance, in this way
It carries out directly switching over server according to the switching adjustable strategies when gray scale publication in production environment on line, it is not necessary to modify
The case where configuring and restart server application system, being not in server application system failure, when user end to server is sent out
When sending application request, server can be handled in time, in this way, even if can also have in the gray scale publication applied
Effect guarantees server to the processing quality of application request and the stability of whole system.
Further, it as the refinement of above-described embodiment and extension, is executed to illustrate according to switching adjustable strategies
The embodiment of server switching adjustment in gray scale issuing process, a kind of optional way are that may include: from switching adjustable strategies
In, it determines and is operating abnormally server present in the gray scale publication test executed in gray scale publication environment, and correspondence is switched to
Normal operation server, and determine corresponding switching adjustment opportunity range;Then production environment is carried out to gray scale on line
In the gray scale issuing process for issuing application, referring to switching adjustment opportunity range, selection target switches adjustment opportunity, according to the target
Switching adjustment opportunity will be operating abnormally server and switch to normal operation server, and then realize and distinguish phase on line in production environment
Switching adjustment between corresponding server.
Wherein, switching adjustment opportunity range can be depending on the actual conditions of server switching time.For example, in gray scale
1 hour after the publication of beginning gray scale is tested in environment time is issued, exception occurs in server A operation, and script needs will be given to clothes
The request of business device A processing is given to server B and is handled, then this time corresponding switching adjustment opportunity range of switching adjustment event
It can be set to start the opportunity range of 1 hour or so (floating up and down no more than 5 minutes) after gray scale is issued.
In this optional way, when being recorded to switching adjustable strategies, it will record and be operating abnormally server and be switched to
Normal operation server identifier and switching time, then according to record information extraction each server identifier
Transfer sequence.Correspondingly, according to the transfer sequence of switching adjustable strategies record, when being switched between each server, from
Most suitable target switching adjustment opportunity is selected to carry out server switching in corresponding switching adjustment opportunity range.For example, selection is cut
The earliest time point changed in adjustment opportunity range switches in adjustment opportunity, or selection switching adjustment opportunity range as target
Middle time point switches adjustment opportunity as target, or selects the latest time point in switching adjustment opportunity range as target
Switch adjustment opportunity, specifically can occur the time being operating abnormally according to server and the error code of operation exception is selected
It selects, to guarantee to complete switching before server delay machine.
Through the above scheme, switching when can be switched according to each server adjusts opportunity range, selects most suitable
Target switches adjustment opportunity, guarantees to complete switching task before server delay machine, prevents the reason of server is because of delay machine appearance
The case where application request of client transmission can not be handled.
The specific implementation of corresponding server switching adjustment is executed during gray scale is issued according to switching adjustable strategies
Mode, another optional way are to be operating abnormally clothes according to present in the gray scale publication test executed in gray scale publication environment
Business device does operation exception label to corresponding server in production environment on line;Then on line in production environment using not
The gray scale publication that application is issued to gray scale is carried out with the server for being operating abnormally label.
When treating gray scale publication application progress gray scale publication test, each operation exception can be recorded in switching adjustable strategies
The identifier (for example, IP address or device numbering etc.) of server.On carrying out line before the gray scale publication of production environment, meeting
These identifiers for being operating abnormally server are obtained, and by corresponding server carries out operation exception mark in production environment on line
Note.Labeled server on line in production environment is selected out, the server for being used without label carries out gray scale publication.
Through the above scheme, when being tested in gray scale publication environment, each identification for being operating abnormally server is recorded
Number, when gray scale being facilitated on subsequent progress line to issue, can by corresponding server rejecting in production environment on line, and then guarantee into
The case where server that gray scale publication uses on line can be not in operation exception in entire issuing process.
In addition, on the opportunity of above-mentioned operation exception label, can be and be marked in gray scale publication environment, so on line
In production environment, it need to will only be eliminated in production environment with the corresponding server of label server on line, recycle operation just
Normal server carries out gray scale publication.The server of normal operation can also be marked, so on line production environment into
Before the publication of row gray scale, the server of normal operation is extracted, the server of normal operation is recycled to carry out gray scale publication.
In order to illustrate the specific implementation process of gray scale publication test, in the alternative embodiment of the application, step 102
It can specifically include: application configuration will be issued to gray scale and carry out gray scale publication test in gray scale publication environment, and according to preset
Production authentication policy treats the corresponding what's new of release application program and carries out production verifying, if what's new production verifying at
Function, it is determined that issue to gray scale and pass through using test, if what's new produces authentication failed, it is determined that issue application to gray scale and survey
Examination does not pass through, and will issue application to gray scale and carry out rollback processing.
In this alternative embodiment, gray scale publication test and production in gray scale publication environment is applied to test to gray scale publication
Card process can carry out simultaneously.For this alternative embodiment, if being application program newly developed to gray scale publication application, need
Production verifying is carried out to each function of application program newly developed;If to gray scale publication application being the update of some application
Using, need to new version apply in what's new carry out production verifying.Wherein, preset production authentication policy can preparatory root
Factually border business demand is configured, and production authentication policy can specifically include: whether authentication function operation normal, authentication function
In whether have virus or trojan horse program, authentication function execute the time whether normally execute time range in etc..In above-mentioned verifying
Any one in appearance goes wrong, and all indicates production authentication failed, and application will be issued to gray scale by, which needing, retracts, when retracting
The details for producing authentication failed can be retracted together.In this way, developer will lose according to the production verifying recorded when retracting
The details lost treat gray scale publication application and the operation such as modify, debugs, then place into the progress of gray scale publication environment again
Secondary gray scale publication test passes through using test until production just determines to issue to gray scale after being proved to be successful, and produces ring on line
Gray scale publication is carried out in border.By this mechanism, where can finding the loophole of application before formal publication on line, and can
To solve the problems, such as corresponding loophole, application what's new in time, and then the formal ash of production environment on line can be improved
Spend the success rate of issuing process.
Further, in order to illustrate the specific embodiment of production verification process, illustratively, if application program to be released
Corresponding what's new is credit process automation, then it is corresponding new to treat release application program according to preset production authentication policy
Increasing the step of function carries out production verifying can specifically include: detection entire credit stream of automated execution in gray scale publication environment
Whether journey there is abnormal (whether such as entire credit process is complete, determines to occur if imperfect abnormal), if automated execution is whole
There is not exception in a credit process, it is determined that what's new production is proved to be successful, if the entire credit process of automated execution is not
It is complete or process step occur and executes error, it is determined that what's new production authentication failed.
For example, increasing credit stream in credit management application if being credit management application to gray scale publication application
The function of process automation.It is carried out in production verification process in gray scale publication environment in this way, it is automatic to need to verify the credit process
Whether the execution sequence of change meets predetermined order, for example, first obtaining the information of local creditor, then calculates the loan limit of local creditor,
Then the interest of this month of loan is calculated again.Or verify whether have virus, wood in the feature card of the credit process automation
Horse etc..If producing authentication failed, it is necessary to application will be issued to gray scale and retracted, developer is allowed to modify and adjust.
In another example the corresponding what's new of application program to be released is recommended automatically suitably according to the essential information of user
Insurance service, will input the essential information of each user in gray scale publication environment, and gray scale publication environment will be modeled as respectively
A user recommends the process of corresponding insurance service.If occurring operating mistake in simulation process, can not recommend for user corresponding
Insurance service, or it is undesirable for the insurance service that user recommends, turn out authentication failed.
For another example the corresponding what's new of application program to be released is to formulate financing plan automatically for user, then can be
The essential information of each user is inputted in gray scale publication environment, gray scale issues environmental simulation and formulates one according to the essential information of user
The verification process of a or multiple financing plans, in the verification process, including being believed according to the fund state of user, personality, hobby etc.
The information such as type, the amount of money, time limit of breath selection finance product, if losing a link in verification process or each holding
The financing plan that the essential information of mistake perhaps user is compromised or can not obtain occurs for row procedural order, can all make whole
The procedure failure of a production verifying.
The publication environment of gray scale in this present embodiment can be created to obtain in several ways according to actual needs, into one
Step, in order to illustrate the specific implementation process of creation gray scale publication environment, in the alternative embodiment of the application, gray scale hair
Process is pre-created in cloth environment, specifically comprises the following steps:
Step A installs Lua (scripting language used in embeddable other scripting languages) interpreter.Wherein, the interpreter
Be edit immediately script interpreter (Just-In-Time Compiler of Lua programming language,
LuaJIT), which is substantially to adopt the code of the Lua interpreter shown a C language;
Step B, configuration load equalization server environmental variance required when installing.For subsequent compilation installation load equilibrium clothes
Business device (such as Nginx server, for high performance HTTP and Reverse Proxy) is prepared;
Step C obtains the test installation kit of load-balanced server, and compiles installation load equilibrium clothes according to environmental variance
Business device;
Step D is obtained and is installed Lua script using database and Lua script local terminal database;
Step E is parsed in load-balanced server referring to the configuration information of production environment on current line and is executed foot
Script is associated by the script logic of this interpreter using script logic using database and script local terminal database,
Complete the creation of gray scale publication environment.
For example, doing load balancing and reverse proxy using Nginx server, Nginx server embeds Lua script interpretation
Device can parse and execute the script logic that Lua language is write, since Lua script has some pass through using storage in database
User accesses the strategy that the associated gray scale of Cookie value subsidiary when domain name shunts, therefore can pass through Lua script interpreter solution
It analyses the Cookie value and obtains the data being stored on user local terminal and access Lua script local terminal database, come real
The building process of existing gray scale publication environment.
By above-mentioned creation process, capable of being created that one, identical gray scale issues environment with production environment on line, for
Some newly developed issue to gray scale are verified using progress gray scale publication test, and production using gray scale publication environment.
This avoid directly will occur run-time error when gray scale issues application and is put into production environment on line, and influence the normal of user
The problem of use.
In the actual operation process, in order to facilitate user's use, gray scale issues the domain name phase of environment and production environment on line
Together, correspondingly, step 102 specific implementation process may include: by issuing to gray scale using corresponding HTTP request
(HTTP Request) is parsed, and Cookie label subsidiary when access domain name is obtained;The Cookie is detected again to mark whether
It is marked comprising preconfigured gray scale, if Cookie label is marked comprising preconfigured gray scale, will issue and answer to gray scale
Gray scale publication test is carried out in gray scale publication environment with configuration, if Cookie label does not include preconfigured gray scale
Note will then issue application to gray scale and be sent directly to production environment progress gray scale publication on line.
For example, by taking Nginx Reverse Proxy as an example, for the access process of this domain name of m.ph.com.cn, according to
Correlated condition is forwarded HTTP request, can prepare two parts of codes in advance here, and production environment on the corresponding line of portion is another
Part corresponding grey scale issues environment;Cookie label is detected, if there is the gray scale being beforehand with marks, so that it may be considered to need to answer
It is entered in gray scale publication environment with new version and carries out publication test, whereas if the gray scale label not being beforehand with, so that it may
It is considered to need that production environment on line will be directly entered using new version to issue.
Through the above technical solutions, user, which can select to enter according to actual needs on gray scale publication environment or line, produces ring
Border, and then can satisfy the different business demand of user.Enter gray scale publication environment progress gray scale test when user wants selection
When, it can be in the Cookie label subsidiary with the corresponding HTTP request of application is issued to gray scale, addition gray scale label;Work as user
When wanting directly to carry out the gray scale publication of production environment on line without gray scale test, so that it may in HTTP request, by gray scale
Label removal.It can thus be marked according to gray scale whether is carried in HTTP request;To determine whether issuing environment into gray scale
Carry out gray scale test.
Technical solution in by applying this embodiment, using pre- publication testing process, using in gray scale publication environment
Switch the server on adjustable strategies guide line in the formal gray scale issuing process of production environment and switch adjustment, it is not necessary to modify configuration and
The case where restarting server application system, being not in application system delay machine, when the request of user end to server sending application,
Server can be handled in time, even if also can effectively ensure that server to application in the gray scale publication applied
The processing quality of request and the stability of whole system.
Further, the specific implementation as Fig. 1 method, the embodiment of the present application provide a kind of application gray scale publication dress
It sets, as shown in Fig. 2, the device includes: acquiring unit 21, detection unit 22, recording unit 23 and release unit 24.
Acquiring unit 21 is applied for obtaining to issue to gray scale;
Detection unit 22 carries out gray scale publication test for that will issue application configuration to gray scale in gray scale publication environment,
Wherein gray scale publication environment is the environment created previously according to production environment on current line;
Recording unit 23, for being recorded in gray scale publication environment to operation exception during gray scale is issued and tested
The switching adjustable strategies of server;
Release unit 24, for that will issue application to gray scale and be sent on line after gray scale is issued and passed through using test
Production environment carries out gray scale publication, and executes corresponding server switching in gray scale issuing process according to switching adjustable strategies and adjust
It is whole.
In a particular embodiment, release unit 24 specifically includes: determining module and switching module;
Determining module, for from switching adjustable strategies, determining the gray scale publication test executed in gray scale publication environment
Present in be operating abnormally server, and the corresponding normal operation server being switched to, and when determining corresponding switching adjustment
Machine range;
Switching module carries out issuing to gray scale in the gray scale issuing process of application for production environment on line, and reference is cut
Adjustment opportunity range selection target switching adjustment opportunity is changed, cuts the operation exception server according to target switching adjustment opportunity
Shift to the normal operation server.
In a particular embodiment, release unit 24 specifically includes: mark module and release module;
Mark module is operating abnormally service according to present in the gray scale publication test executed in gray scale publication environment
Device does operation exception label to corresponding server in production environment on line;
Release module issue to gray scale using without the server for being operating abnormally label in production environment on line
The gray scale of application is issued.
In a particular embodiment, detection unit 22 specifically includes: authentication module, exists for that will issue application configuration to gray scale
Gray scale issue environment in carry out gray scale publication test, and according to preset production authentication policy treat release application program it is corresponding newly
Increase function and carries out production verifying;If what's new production is proved to be successful, it is determined that issue to gray scale and pass through using test;If newly-increased
Function produces authentication failed, it is determined that issues to gray scale and does not pass through using test, and will issue application to gray scale and carry out at rollback
Reason.
In a particular embodiment, authentication module, if being also used to what's new is credit process automation, detection is sent out in gray scale
Whether the entire credit process of automated execution there is exception in cloth environment;If the entire credit process of automated execution does not occur different
Often, it is determined that what's new production is proved to be successful;If the entire credit process of automated execution is imperfect or process step occurs
Execute error, it is determined that what's new produces authentication failed.
In a particular embodiment, device further include: installation unit, configuration unit, compilation unit and creating unit;
Installation unit is used for installation script interpreter;
Configuration unit, required environmental variance when for the installation of configuration load equalization server;
Compilation unit, for obtaining the test installation kit of load-balanced server, and it is negative according to environmental variance compiling installation
Carry equalization server;
Acquiring unit 21, is also used to obtain and installation script uses database and script local terminal database;
Creating unit parses in load-balanced server for the configuration information referring to production environment on current line
And the script logic of perform script interpreter, using script logic by script using database and script local terminal database into
The creation of gray scale publication environment is completed in row association.
In a particular embodiment, gray scale publication environment is identical as the domain name of production environment on line, then detection unit 22 is specific
Further include: parsing module and detection module;
Parsing module, for obtaining access domain by parsing to gray scale publication using corresponding HTTP request
Subsidiary Cookie label when name;
Detection module marks whether to mark comprising preconfigured gray scale for detecting Cookie;If Cookie label packet
It is marked containing preconfigured gray scale, then will issue application configuration to gray scale and carry out gray scale publication test in gray scale publication environment;
It is marked if Cookie label does not include preconfigured gray scale, application will be issued to gray scale and be sent directly to production environment on line
Carry out gray scale publication.
It should be noted that provided by the embodiments of the present application a kind of using each functional unit involved by gray scale distributing device
Other are accordingly described, can be with reference to the corresponding description in Fig. 1, and details are not described herein.
Based on above-mentioned method as shown in Figure 1, correspondingly, being deposited thereon the embodiment of the present application also provides a kind of storage medium
Computer program is contained, which realizes above-mentioned application gray scale dissemination method as shown in Figure 1 when being executed by processor.
Based on this understanding, the technical solution of the application can be embodied in the form of software products, which produces
Product can store in a non-volatile memory medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions
With so that computer equipment (can be personal computer, server or the network equipment an etc.) execution the application is each
Method described in implement scene.
Embodiment based on method shown in above-mentioned Fig. 1 and Fig. 2 shown device, to achieve the goals above, the application are implemented
Example additionally provides a kind of application gray scale distribution apparatus, is specifically as follows the intelligent terminals such as PC, the network equipment, router,
As shown in figure 3, including storage medium 32 and processor 31, wherein storage medium 32 and processor 31 are arranged in bus 33.
Storage medium 32, for storing computer program;Processor 31 is realized above-mentioned such as Fig. 1 institute for executing the computer program
The application gray scale dissemination method shown.
Optionally, this can also include user interface, network interface, camera, radio frequency using gray scale distribution apparatus
(Radio Frequency, RF) circuit, sensor, voicefrequency circuit, WI-FI module etc..User interface may include display screen
(Display), input unit such as keyboard (Keyboard) etc., optional user interface can also connect including USB interface, card reader
Mouthful etc..Network interface optionally may include standard wireline interface and wireless interface (such as blue tooth interface, WI-FI interface).
It will be understood by those skilled in the art that a kind of application gray scale distribution apparatus structure provided in this embodiment is not constituted
Restriction to the entity device may include more or fewer components, perhaps combine certain components or different component cloth
It sets.
It can also include operating system, network communication module in storage medium.Operating system is that management and application gray scale are sent out
The program of cloth equipment hardware and software resource supports the operation of message handling program and other softwares and/or program.Network is logical
Believe module for realizing the communication between each component in storage medium inside, and with application gray scale distribution apparatus in other hardware and
It is communicated between software.
Through the above description of the embodiments, those skilled in the art can be understood that the application can borrow
It helps software that the mode of necessary general hardware platform is added to realize, hardware realization can also be passed through.Pass through the skill of application the application
Art scheme can generate corresponding switching adjustable strategies in gray scale publication environment in advance, so on line in production environment into
Row gray scale directly switches over server according to the switching adjustable strategies when issuing, and it is not necessary to modify the configuration of server and restarts
The case where server is not in server delay machine, when the request of user end to server sending application, server can be timely
It is handled, in this way, even if also can effectively ensure that processing of the server to application request in the gray scale publication applied
The stability of quality and whole system.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or
Process is not necessarily implemented necessary to the application.It will be appreciated by those skilled in the art that the mould in device in implement scene
Block can according to implement scene describe be distributed in the device of implement scene, can also carry out corresponding change be located at be different from
In one or more devices of this implement scene.The module of above-mentioned implement scene can be merged into a module, can also be into one
Step splits into multiple submodule.
Above-mentioned the application serial number is for illustration only, does not represent the superiority and inferiority of implement scene.Disclosed above is only the application
Several specific implementation scenes, still, the application is not limited to this, and the changes that any person skilled in the art can think of is all
The protection scope of the application should be fallen into.