CN104216708A - Method and device for data monitoring - Google Patents

Method and device for data monitoring Download PDF

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Publication number
CN104216708A
CN104216708A CN201410413050.2A CN201410413050A CN104216708A CN 104216708 A CN104216708 A CN 104216708A CN 201410413050 A CN201410413050 A CN 201410413050A CN 104216708 A CN104216708 A CN 104216708A
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attribute
hash table
request
key
language
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CN104216708B (en
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刘细华
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Beijing QIYI Century Science and Technology Co Ltd
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Beijing QIYI Century Science and Technology Co Ltd
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Abstract

The invention provides a method and a device for data monitoring. The method comprises the following steps: aiming at each C language object, respectively storing a plurality of attributes of the C language object in a Hash table preset aiming at the C language objects, wherein the attributes comprise attribute names, attribute values and attribute value types; receiving a first target sent by a monitoring interface preset by accessing so as to access the request of the Hash table, reading and returning the attributes of the C language objects in the Hash table, generating a first target to read first information of the attributes, or amending the attributes of the C language objects in the Hash table, and generating the first target to amend second information of the attributes; sending the first information or the second information to a second target registering a monitoring interface by the monitoring interface.

Description

A kind of method and apparatus of data monitoring
Technical field
The present invention relates to technical field of data processing, particularly relate to a kind of method of data monitoring, and, a kind of device of data monitoring.
Background technology
C language a kind ofly compares the computer programming language connecing bottom, and it had both had the feature of higher level lanquage, had again the feature of assembly language.It can as working system design language, system for writing and compiling application program, also as application programming language, can write the application program not relying on computer hardware.
In OO programming, all things is object all, and by OO mode, the things of real world is abstracted into object, the relation in real world is abstracted into class and succession, helps people to realize the abstract of real world and digital modeling.By Object--oriented method, the mode being more conducive to employment understanding is analyzed complication system, designs and is programmed.Meanwhile, object-oriented effectively can improve the efficiency of programming, and by encapsulation technology, message mechanism can send a brand-new system by fast open as playing with building blocks.Therefore the OO development language such as C++, Java, C# obtains development fast and applies widely.
In the system developer of some bottoms, in order to obtain better efficiency and transplanting, C language must be used write.And C language is a procedure-oriented language, itself does not provide OO programmed environment.
In the object-oriented program using C language to write, program can directly access the data of object and revise, and the data of these amendments likely have influence on other objects, but they cannot be notified timely after data modification, and make corresponding response, in order to process this situation, developer must design a kind of informing mechanism to satisfy the demands.
Simultaneously in OO programming, a very important feature is exactly the encapsulation of data, and the access of control data and amendment authority, can be caught the interested object of data or module by other, thus make corresponding feedback.
In sum, in order to utilize OO advantage, needing a set of developer oneself that supplies based on C language and realizing OO mechanism.
Summary of the invention
The invention provides a kind of method and apparatus of data monitoring, all to solve or partly to solve the problems of the technologies described above.
The invention provides a kind of method of data monitoring, comprising:
For each C language object, be kept at respectively by multiple attributes of described C language object in the preset Hash table of described C language object, described attribute comprises Property Name, property value and property value type;
Receive the request that the first object sent by accessing preset monitoring interface accesses described Hash table, read and return the attribute of C language object in described Hash table, generate the first message that described first object reads described attribute, or revise the attribute of C language object in described Hash table, generate the second message that described first object revises described attribute;
By described monitoring interface, described first message or described second message are sent to the second target registering described monitoring interface.
Preferably, data in described Hash table are preserved with the form of key-key assignments, described key is the Property Name of described attribute, and described key assignments is property value and the property value type of described attribute, and the title of the attribute of request reading is carried in the request of the described Hash table of described reading.
Preferably, described reading the attribute returning C language object in described Hash table comprise:
Using the Property Name of the attribute of described first object request reading as key, search the key assignments that described key is corresponding, as the attribute that request is read;
The attribute searched is returned to described first object by described monitoring interface.
Preferably, described method also comprises:
Receive the request of first object or the second target monitoring all properties or part attribute, and the identity information of described first object or the second target is added in preset eavesdropping target's list.
Preferably, the data type of described attribute is character type, character string type, shaping, floating type or pointer type.
Present invention also offers a kind of device of data monitoring, comprising:
Preserve module, for for each C language object, be kept at respectively by multiple attributes of described C language object in the preset Hash table of described C language object, described attribute comprises Property Name, property value and property value type;
First access modules, the request of described Hash table is accessed for receiving the first object sent by accessing preset monitoring interface, read and return the attribute of C language object in described Hash table, generate the first message that described first object reads described attribute, or, second access modules, for revising the attribute of C language object in described Hash table, generates the second message that described first object revises described attribute;
Message transmission module, for sending to the second target registering described monitoring interface by described first message or described second message by described monitoring interface.
Preferably, data in described Hash table are preserved with the form of key-key assignments, described key is the Property Name of described attribute, and described key assignments is property value and the property value type of described attribute, and the title of the attribute of request reading is carried in the request of the described Hash table of described reading.
Preferably, described first access modules comprises:
Key assignments searches submodule, for using the Property Name of the attribute of described first object request reading as key, searches the key assignments that described key is corresponding, as the attribute that request is read;
Key assignments returns submodule, for the attribute searched is returned to described first object by described monitoring interface.
Preferably, described device also comprises:
Adding module, for receiving the request of first object or the second target monitoring all properties or part attribute, and the identity information of described first object or the second target being added in preset eavesdropping target's list.
Preferably, the data type of described attribute is character type, character string type, shaping, floating type or pointer type.
Compared with background technology, the present invention includes following advantage:
According to the embodiment of the present invention, the attribute of C language object and the classification of attribute are kept in Hash table, by monitoring interface to first object to after the request of access of data, read from Hash table or the attribute of amendment C language object, and generate corresponding message informing to the second target monitoring language object, as can be seen here, embodiments provide a kind of OO key assignments Observer Pattern, after the attribute of the object of specifying is modified, this object and the listener to this subject interests will receive notice.Be exactly briefly, after the attribute of the observed object of at every turn specifying is modified, will automatically notify corresponding observer.
Further, the embodiment of the present invention can also control the authority monitoring C language object, and listener must be registered as the listener of all properties or certain specific object, is added in eavesdropping target's list the monitoring that just can realize C language object.
In addition, each attributive classification inherits from base class, when writing attributive classification, interface need not be write again for each attribute, naturally obtaining the key assignments observer function of base class, without the need to increasing new application program, saving the waste of storage space and resource, simplify programing work, convenient expansion.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the method for a kind of data monitoring of the embodiment of the present invention;
Fig. 2 is the structured flowchart of the device of a kind of data monitoring of the embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
The problem of Object-oriented Mechanism is not provided based on C language itself, embodiments provide a kind of key assignments Observer Pattern based on C language, i.e. KVO (Key-Value Observing), the design philosophy of KVO Design Mode there are provided a kind of mechanism, after the attribute of the object of specifying is modified, this object and the listener to this subject interests will receive notice.Be exactly briefly, after the attribute of the observed object of at every turn specifying is modified, will automatically notify corresponding observer.
Be described in detail below by the realization flow of embodiment to the method for the invention.
With reference to Fig. 1, it illustrates the process flow diagram of the method for a kind of data monitoring described in the embodiment of the present invention, described method specifically can comprise:
Step 101, for each C language object, be kept at respectively by multiple attributes of described C language object in the preset Hash table of described C language object, described attribute comprises Property Name, property value and property value type.
In the C language object of design, each C language object is the set of attribute and method.Attribute is abstract to C language data types all in C language, the attribute of the embodiment of the present invention to C language object encapsulates, take out the class of an attribute, it is the elementary cell of C language object, and each attribute kit is containing attribute type, Property Name and a property value.
Further, also need to the present invention is directed to the unified base class of setup of attribute one, a Hash table is set for this base class, is called key with the name of attribute, be used for storing all properties of C language object.Data in Hash table are preserved with the form of key-key assignments, and key is the Property Name of described attribute, and key assignments is property value and the property value type of described attribute.
It should be noted that, be all provided with corresponding independently Hash table for C language object, namely each object has the Hash table of oneself, and is one to one.
In concrete realization, preferably, the data type of described attribute is the various data types such as character type, character string type, shaping, floating type or pointer type, and can expand new data type neatly.
Step 102, the first object received by accessing preset monitoring interface transmission access the request of described Hash table, read and return the attribute of C language object in described Hash table, generate the first message that described first object reads described attribute, or revise the attribute of C language object in described Hash table, generate the second message that described first object revises described attribute.
The embodiment of the present invention additionally provides the method for access Hash table, the i.e. method of access attribute, attribute be outwards disclosed in, the external world wants the data of access object, must be visited by the method for access attribute of the present invention and Property Name, when designing the program, in the method for object accesses and Update Table, encapsulate the control to data access, therefore any access to data and amendment, can be listened to by object.
The embodiment of the present invention is also provided with the unified interface of monitoring, and first object must realize monitoring, to be registered as the listener of object by interface.
First object is by preset monitoring interface requests access Hash table, and request of access can be to obtain data, or in order to Update Table.According to the request received, if obtain the request of data, can the attribute of C language of read requests return, and generate the first message, the operation of the first message flag generation reading attributes, if the request of Update Table, can revise the attribute of C language object, and generate the second message, there is the operation of amendment attribute in the second message flag.
Can know when first object have accessed attribute or have modified attribute by the scheme of the embodiment of the present invention, thus the second object that notice is monitored, thus realize key assignments monitoring.
Particularly, the title of the attribute of request reading is carried in the request of the described Hash table of described reading.
In the embodiment of the present invention, preferably, described reading the attribute returning C language object in described Hash table comprise:
Sub-step S11, the Property Name of attribute that reads using described first object request, as key, search the key assignments that described key is corresponding, as the attribute that request is read;
Sub-step S12, the attribute searched is returned to described first object by described monitoring interface.
Can find corresponding key according to the Property Name of attribute that request is read, attribute, namely as the attribute of this C language object, is fed back to the first object of request access by key assignments corresponding to pick-up key.
Step 103, by described monitoring interface, described first message or described second message are sent to the second target registering described monitoring interface.
Give the second target by the first message or the second message feedback, thus achieve the monitoring of the second target to key assignments.
According to the embodiment of the present invention, the attribute of C language object and the classification of attribute are kept in Hash table, by monitoring interface to first object to after the request of access of data, read from Hash table or the attribute of amendment C language object, and generate corresponding message informing to the second target monitoring language object, as can be seen here, embodiments provide a kind of OO key assignments Observer Pattern, after the attribute of the object of specifying is modified, this object and the listener to this subject interests will receive notice.Be exactly briefly, after the attribute of the observed object of at every turn specifying is modified, will automatically notify corresponding observer.
Further, because each class inherits from base class, the KVO function of base class is naturally obtained.In the OO class formation of C language, all attributes are all stored in Hash table, provide a unified access and amendment interface to external world, therefore when writing subclass, notification interface need not be write again for each attribute, subclass also obtain the function of KVO naturally, simplifies programming, convenient expansion.In order to realize this general powerful function, this should be the process needing process.
In the embodiment of the present invention, further preferably, described method also comprises:
Receive the request of first object or the second target monitoring all properties or part attribute, and the identity information of described first object or the second target is added in preset eavesdropping target's list.
The embodiment of the present invention can also control the authority monitoring C language object, listener must be registered as the listener of all properties or certain specific object, be added in eavesdropping target's list the monitoring that just can realize C language object, after the attribute of the object of specifying is modified, notice will be received to the listener of this subject interests.
For making those skilled in the art more understand the embodiment of the present invention, below providing one and creating C language Object Process, and realizing the monitoring to C language object.
First, an object: Properties user=Properties_New () is created.
Then, create and set a property:
Properties_Set (user, " name ", " Jack "), corresponding Property Name is name, and property value is character string " Jack ", and property value type is character string type;
Properties_Set_Int (user, " age ", 17), corresponding Property Name is age, and property value is 17, and property value type is integer;
Properties_Set_Double (user, " height ", 178.5), corresponding Property Name is height, and property value is 178.5, and property value type is floating type;
char*privatedata=(char*)malloc(256);
Properties_Set_Data (user, " private ", privatedata, 256, free, NULL); Corresponding Property Name is private, and property value is privatedata, and property value type is pointer type, specifies the length of data simultaneously, and how to discharge the method for data.
Then, define one and monitor function, comprise multiple parameter s tatic int listener_callback (ListenerObject listener, Properties object, char*name, void*arg), wherein the first parameter listener is listener, and second parameter object is listened person, and the 3rd parameter is that notice is which attribute there occurs change when the attribute of object changes, 4th is extra parameter, is generally caller and arranges.
A listener object listener is created by ListenerObject listener=ListenerObject_New (); By Properties_Set_Listener (user, listener, listener_callback, NULL), the attribute change that listener monitors user is set.
By arranging Properties_Set_Int (user, " age ", 18), after calling this function, listener_callback will be called, and just can respond according to specific circumstances in monitoring function.
By the attribute of int age=Properties_Get_Int (user, " age ") access object
Finally, releasing object, Properties_Close (user) and Properties_Close (listener).
It should be noted that, for aforesaid embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action might not be essential to the invention.
Based on the explanation of said method embodiment, present invention also offers the device embodiment of corresponding data monitoring, realize the content described in said method embodiment.
With reference to Fig. 2, it illustrates the structured flowchart of the device of a kind of data monitoring described in the embodiment of the present invention, comprising:
Preserve module 201, for for each C language object, be kept at respectively by multiple attributes of described C language object in the preset Hash table of described C language object, described attribute comprises Property Name, property value and property value type;
First access modules 202, the request of described Hash table is accessed for receiving the first object sent by accessing preset monitoring interface, read and return the attribute of C language object in described Hash table, generate the first message that described first object reads described attribute, or, second access modules 203, for revising the attribute of C language object in described Hash table, generates the second message that described first object revises described attribute;
Message transmission module 204, for sending to the second target registering described monitoring interface by described first message or described second message by described monitoring interface.
In the embodiment of the present invention, preferably, the data in described Hash table are preserved with the form of key-key assignments, and described key is the Property Name of described attribute, described key assignments is property value and the property value type of described attribute, and the title of the attribute of request reading is carried in the request of the described Hash table of described reading.
In the embodiment of the present invention, preferably, described first access modules comprises:
Key assignments searches submodule, for using the Property Name of the attribute of described first object request reading as key, searches the key assignments that described key is corresponding, as the attribute that request is read;
Key assignments returns submodule, for the attribute searched is returned to described first object by described monitoring interface.
In the embodiment of the present invention, preferably, described device also comprises:
Adding module, for receiving the request of first object or the second target monitoring all properties or part attribute, and the identity information of described first object or the second target being added in preset eavesdropping target's list.
In the embodiment of the present invention, preferably, the data type of described attribute is character type, character string type, shaping, floating type or pointer type.
According to the embodiment of the present invention, the attribute of C language object and the classification of attribute are kept in Hash table, by monitoring interface to first object to after the request of access of data, read from Hash table or the attribute of amendment C language object, and generate corresponding message informing to the second target monitoring language object, as can be seen here, embodiments provide a kind of OO key assignments Observer Pattern, after the attribute of the object of specifying is modified, this object and the listener to this subject interests will receive notice.Be exactly briefly, after the attribute of the observed object of at every turn specifying is modified, will automatically notify corresponding observer.
Further, the embodiment of the present invention can also control the authority monitoring C language object, and listener must be registered as the listener of all properties or certain specific object, is added in eavesdropping target's list the monitoring that just can realize C language object.
In addition, each attributive classification inherits from base class, when writing attributive classification, notification interface need not be write again for each attribute, naturally obtaining the key assignments observer function of base class, without the need to increasing new application program, saving the waste of storage space and resource, simplify programing work, convenient expansion.
For the device embodiment of above-mentioned data monitoring, due to itself and embodiment of the method basic simlarity, so description is fairly simple, the part of relevant part embodiment of the method shown in Figure 1 illustrates.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Those skilled in the art are easy to it is envisioned that: the combination in any application of each embodiment above-mentioned is all feasible, therefore the combination in any between each embodiment above-mentioned is all embodiment of the present invention, but this instructions does not just detail one by one at this as space is limited.
The present invention can be used in numerous general or special purpose computing system environment or configuration.Such as: personal computer, server computer, handheld device or portable set, laptop device, multicomputer system, system, set top box, programmable consumer-elcetronics devices, network PC, small-size computer, mainframe computer, the distributed computing environment comprising above any system or equipment etc. based on microprocessor.
The present invention can describe in the general context of computer executable instructions, such as program module.Usually, program module comprises the routine, program, object, assembly, data structure etc. that perform particular task or realize particular abstract data type.Also can put into practice the present invention in a distributed computing environment, in these distributed computing environment, be executed the task by the remote processing devices be connected by communication network.In a distributed computing environment, program module can be arranged in the local and remote computer-readable storage medium comprising memory device.
In the present invention, " assembly ", " device ", " system " etc. refer to be applied to the related entities of computing machine, as the combination of hardware, hardware and software, software or executory software etc.In detail, such as, assembly can but be not limited to be run on the process of processor, processor, object, can executive module, execution thread, program and/or computing machine.Further, run on application program on server or shell script, server can be assembly.One or more assembly can in the process performed and/or thread, and assembly can localization and/or be distributed between two or multiple stage computing machine on one computer, and can be run by various computer-readable medium.Assembly can also according to the signal with one or more packet, such as, from one with another component interaction in local system, distributed system, and/or the network in the Internet communicated by local and/or remote process with the signal of the data of other system interaction by signal.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And term " comprises ", " comprising ", not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
And "and/or" above represents and both contained herein " with " relation, also contains the relation of "or", wherein: if option A and option b be " with " relation, then represent in certain embodiment can comprise option A and option b simultaneously; If option A and option b are the relations of "or", then represent in certain embodiment and can comprise option A separately, or comprise option b separately.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disk memory, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the process flow diagram of the method for the embodiment of the present invention, equipment (system) and computer program and/or block scheme.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block scheme and/or square frame and process flow diagram and/or block scheme and/or square frame.These computer program instructions can being provided to the processor of multi-purpose computer, special purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computing machine or other programmable data processing device produce device for realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
These computer program instructions also can be loaded in computing machine or other programmable data processing device, make on computing machine or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computing machine or other programmable devices is provided for the step realizing the function of specifying in process flow diagram flow process or multiple flow process and/or block scheme square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Above to a kind of method of data monitoring provided by the present invention and the device of data monitoring, be described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (10)

1. a method for data monitoring, is characterized in that, comprising:
For each C language object, be kept at respectively by multiple attributes of described C language object in the preset Hash table of described C language object, described attribute comprises Property Name, property value and property value type;
Receive the request that the first object sent by accessing preset monitoring interface accesses described Hash table, read and return the attribute of C language object in described Hash table, generate the first message that described first object reads described attribute, or revise the attribute of C language object in described Hash table, generate the second message that described first object revises described attribute;
By described monitoring interface, described first message or described second message are sent to the second target registering described monitoring interface.
2. method according to claim 1, is characterized in that:
Data in described Hash table are preserved with the form of key-key assignments, and described key is the Property Name of described attribute, and described key assignments is property value and the property value type of described attribute, and the title of the attribute of request reading is carried in the request of the described Hash table of described reading.
3. method according to claim 2, is characterized in that, described reading the attribute returning C language object in described Hash table comprise:
Using the Property Name of the attribute of described first object request reading as key, search the key assignments that described key is corresponding, as the attribute that request is read;
The attribute searched is returned to described first object by described monitoring interface.
4. method according to claim 1, is characterized in that, also comprises:
Receive the request of first object or the second target monitoring all properties or part attribute, and the identity information of described first object or the second target is added in preset eavesdropping target's list.
5. method according to claim 1, is characterized in that:
The data type of described attribute is character type, character string type, shaping, floating type or pointer type.
6. a device for data monitoring, is characterized in that, comprising:
Preserve module, for for each C language object, be kept at respectively by multiple attributes of described C language object in the preset Hash table of described C language object, described attribute comprises Property Name, property value and property value type;
First access modules, the request of described Hash table is accessed for receiving the first object sent by accessing preset monitoring interface, read and return the attribute of C language object in described Hash table, generate the first message that described first object reads described attribute, or, second access modules, for revising the attribute of C language object in described Hash table, generates the second message that described first object revises described attribute;
Message transmission module, for sending to the second target registering described monitoring interface by described first message or described second message by described monitoring interface.
7. device according to claim 6, is characterized in that:
Data in described Hash table are preserved with the form of key-key assignments, and described key is the Property Name of described attribute, and described key assignments is property value and the property value type of described attribute, and the title of the attribute of request reading is carried in the request of the described Hash table of described reading.
8. device according to claim 7, is characterized in that, described first access modules comprises:
Key assignments searches submodule, for using the Property Name of the attribute of described first object request reading as key, searches the key assignments that described key is corresponding, as the attribute that request is read;
Key assignments returns submodule, for the attribute searched is returned to described first object by described monitoring interface.
9. device according to claim 6, is characterized in that, also comprises:
Adding module, for receiving the request of first object or the second target monitoring all properties or part attribute, and the identity information of described first object or the second target being added in preset eavesdropping target's list.
10. device according to claim 6, is characterized in that:
The data type of described attribute is character type, character string type, shaping, floating type or pointer type.
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CN110515605A (en) * 2019-08-20 2019-11-29 网易(杭州)网络有限公司 Synchronous method and device, the storage medium and processor of attribute information
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