CN103258055A - Device and method for file downloading - Google Patents
Device and method for file downloading Download PDFInfo
- Publication number
- CN103258055A CN103258055A CN2013102145439A CN201310214543A CN103258055A CN 103258055 A CN103258055 A CN 103258055A CN 2013102145439 A CN2013102145439 A CN 2013102145439A CN 201310214543 A CN201310214543 A CN 201310214543A CN 103258055 A CN103258055 A CN 103258055A
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- file
- value
- storage unit
- call request
- specific fields
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/13—File access structures, e.g. distributed indices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The invention provides a device for file downloading. The device comprises a webpage analyzing module, a file judging module and a file downloading module, wherein the webpage analyzing module is suitable for receiving call requests, for files, of a webpage when the webpage is loaded on the browser side, the file judging module is suitable for judging whether the files exist in a file storage unit which is preset on the browser side, and the file downloading module is suitable for directly obtaining the files from the file storage unit when the files exist, and downloading the files from a server corresponding to the webpage according to the call requests when the files do not exist. The invention further provides a corresponding method for file downloading. According to the device and the method for file downloading, some network sources are arranged inside the browser side, and responding speed of a website is improved.
Description
Technical field
The present invention relates to internet arena, be specifically related to a kind of file download equipment and corresponding document down loading method.
Background technology
Data show according to statistics, in the maximum website of preceding 10000 visits in the world, have and surpass 55% at use jQuery, this is a multiple browser of compatibility, free, the javascript storehouse of increasing income, can make the developer can handle html document, event more easily and realize animation effect etc., develop powerful static state or dynamic web page easily.
The user is when using browser to browse web sites, and browser can be downloaded jQuery script storehouse automatically from the website, can present the mutual effect of multiple js to realize local page; Browser is downloaded jQuery script storehouse automatically from the website may need the flower certain hour, and especially institute's time-consuming can significantly influence the response speed of webpage under the not so good situation of network state, has prolonged user's stand-by period.
In order to improve website visiting speed, local user's end can deposit the web site contents of having visited in the buffer memory of local browser in automatically, in case this website is conducted interviews again, then can directly take out this web site contents from local cache and carry out loaded and displayed.The caching mechanism of browser itself can make user side directly call from local cache when the identical Internet resources of back-call, but the user for the first time also must must be from down loading network resource on the network during accesses network resource.Therefore, the new user for visiting for the first time downloads these Internet resources and is bound to cause certain operating lag.
Summary of the invention
In view of the above problems, the invention provides a kind of file download equipment and corresponding document down loading method, in order to overcome the problems referred to above or address the above problem at least in part.
According to an aspect of the present invention, provide a kind of file download equipment, comprising:
The webpage parsing module is suitable for receiving the described page to the call request of file when the browser side Web page loading page;
The file judge module is suitable for judging whether described file is present in the file storage unit that the browser side presets; And
The file download module is suitable for
If there is described file, then directly from described file storage unit, obtain described file; With
If there is not described file, then download described file according to described call request from described webpage corresponding server.
Alternatively, store a plurality of files with the name of its particular attribute-value in the described file storage unit, wherein the file judge module be suitable for according to described call request whether comprise with described file storage unit in the filename that is complementary of file judge whether to exist described file.
Alternatively, described file judge module is suitable for: if described call request comprises specific fields, and the filename of the value that is associated with described specific fields and the file in the file storage unit is complementary, and then there is described file in judgement; If the value that the specific fields that comprises of described call request is associated does not match with the filename of the file in the described file storage unit, or described call request do not comprise described specific fields, and then there is not described file in judgement.
Alternatively, described file download equipment also comprises:
The filename computing module, be suitable for obtaining the particular attribute-value of described file download module downloaded files, and file storage module, be suitable for if the value of the specific fields that described file attribute value and described call request comprise is complementary, then storage institute's downloaded files and name with this particular attribute-value in file storage unit; With if the value of the specific fields that described file attribute value and described call request comprise does not match, then do not store institute's downloaded files.
Alternatively, the value of described particular attribute-value for file content being carried out obtain after the Hash calculation.
Alternatively, described file is the javascript script file.
According to a further aspect in the invention, provide a kind of document down loading method, comprising:
When the browser side Web page loading page, receive the described page to the call request of file;
Judge whether described file is present in the file storage unit that the browser side presets;
If there is described file, then directly from described storage unit, obtain described file; With
If there is not described file, then download described file according to described call request from described webpage corresponding server.
Alternatively, store a plurality of files with the name of its particular attribute-value in the described file storage unit, wherein determining step according to described call request whether comprise with described file storage unit in the filename that is complementary of file judge whether to exist described file.
Alternatively, described determining step comprises: if described call request comprises specific fields, and the filename of the value that is associated with described specific fields and the file in the file storage unit is complementary, and then there is described file in judgement; And if the value that the specific fields that comprises of described call request is associated does not match with the filename of the file in the described file storage unit, or described call request do not comprise described specific fields, and then there is not described file in judgement.
Alternatively, described document down loading method also comprises: the particular attribute-value of obtaining institute's downloaded files, and if the value of the specific fields that described file attribute value and described call request comprise is complementary, storage institute's downloaded files and name with this particular attribute-value in file storage unit then; If the value of the specific fields that described file attribute value and described call request comprise does not match, then do not store institute's downloaded files.
Alternatively, the value of described particular attribute-value for file content being carried out obtain after the Hash calculation.
Alternatively, described file is the javascript script file.
File download equipment provided by the invention and corresponding document down loading method, by preset the file storage unit that includes multifile in this locality, access web page make browser when need be called file, at first search in the local file storage unit and whether have required file to be called, if then directly call local file when existing, and need not from network to download, so just can avoid browser to cause the webpage response time long because of the part of publishing papers up and down from Website server, the webpage response speed can improve satisfaction of users greatly fast.
Further, file download equipment provided by the invention and method by downloading the particular attribute-value of file, are verified the correctness of downloading file; If correct, then it is stored in the file storage unit, realized that the safety of file is added in the file storage unit, also make file download equipment of the present invention and method can save the download time of more Internet resources.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by the specific embodiment of the present invention.
Description of drawings
By reading hereinafter detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skills.Accompanying drawing only is used for the purpose of preferred implementation is shown, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts with identical reference symbol.In the accompanying drawings:
Fig. 1 shows file download equipment structural representation according to an embodiment of the invention; And
Fig. 2 shows the schematic flow sheet of document down loading method according to an embodiment of the invention.
Embodiment
Exemplary embodiment of the present disclosure is described below with reference to accompanying drawings in more detail.Though shown exemplary embodiment of the present disclosure in the accompanying drawing, yet should be appreciated that and to realize the disclosure and the embodiment that should do not set forth limits here with various forms.On the contrary, it is in order to understand the disclosure more thoroughly that these embodiment are provided, and can with the scope of the present disclosure complete convey to those skilled in the art.
Fig. 1 shows the structural representation of file download equipment according to an embodiment of the invention, comprise: webpage parsing module 101, file judge module 102, file download module 103, file storage unit 104, filename computing module 105 and file storage module 106.In the present invention, described file download equipment can be the Computer Browser terminal, also can be that mobile phone etc. can insert other electronic equipments that the internet carries out web page browsing.
The user loads A Website page http://www.a.com/index.htm in the browser side, this content of pages be:
<html>
<script
src="http://www.a.com/jquery-1.7.1.min.js?localFile=abcdabcd.js"></script>
<font>Hello?world!</font>
</html>
Wherein, jquery-1.7.1.min.js is for loading the javascript script file that the A website will be called, and localFile is its specific fields that comprises, and its value is abcdabcd.js.
At this moment, webpage parsing module 101 receives described A Website page to the call request of javascript script file jquery-1.7.1.min.js.Usually, the browser side need be downloaded this script file from webserver side, could make described A Website page demonstrate the mutual effect of this JS.
The inventor notices, this javascript script file is a kind of general Internet resources, content all is standard, the user who there is no need to allow all visit this A Website page first removes to download this script file, the one, caused waste of network resources, the 2nd, what can respond browser to the response speed of this webpage, especially under the not so good situation of network condition.
File download equipment according to the embodiment of the invention provides file storage unit 104, wherein stores the universal network resource of a plurality of content standards, such as the javascript script file of jquery-1.7.1.min.js.Like this, the script file in the file storage unit 104 that just can be local when utilizing the browser Web page loading substitutes from needs downloads described file from webserver side, thus raising access to netwoks speed.
In file storage unit 104, institute's stored script information file is all with its particular attribute-value name, so that the script file content can be unique with its filename, correctly corresponding.In the present embodiment, particular attribute-value is for carrying out the value after the Hash calculation to file content, more specifically, and the md5 value of particular attribute-value for file content being carried out obtain after md5 calculates.
Alternatively, file storage unit 104 can be arranged on the storage unit under the browser installation directory, perhaps also can be arranged under the sub-directory of browser installation directory.
Next, file judge module 102 judges according to described call request whether described file is present in the file storage unit 104.In above-mentioned loading to the A Website page, the script file call request that webpage parsing module 101 receives is http://www.a.com/jquery-1.7.1.min.js localFile=abcdabcd.js.In this case, file judge module 102 mates the filename of each file of storing in localFile field value abcdabcd.js and the file storage unit 104, judges whether there is the script file that will call in the file storage unit 104 thus.In the present embodiment, if script file name and abcdabcd.js in the file storage unit 104 are complementary, judge that then it has the required script file jquery-1.7.1.min.js that calls of loading A website and webpage; If do not match, then judge not have this script file.
Certainly, if do not comprise specific fields localFile in the call request, then file judge module 102 is also judged and is not had the file that will call in the file storage unit 104.
Exist in file storage unit 104 and will call under the situation of file, browser directly obtains described file from file storage unit 104 and it loads, and the A Website page can demonstrate the mutual effect of this JS.
Do not exist in file storage unit 104 under the situation that will call file, file download module 103 is downloaded this document according to this call request from the server of being responsible for providing this document, and then this document is loaded and is shown by browser.
Further, file download equipment of the present invention also comprises filename computing module 105, is used for calculating the particular attribute-value that obtains this document download module 103 downloaded files; In the present embodiment, filename computing module 105 calculates institute's downloaded files by the hash algorithm such as md5, obtains its particular attribute-value.
The file download equipment can also comprise file storage module 106, the value of specific fields localFile compares in the particular attribute-value of downloading file that filename computing module 105 is calculated and this call request, if the two coupling, judge that institute's downloaded files content is not modified, be the script file of standard content, storage institute's downloaded files and with the name of this particular attribute-value in file storage unit 104 then; If the value of the specific fields localFile that the particular attribute-value of calculating and described call request comprise does not match, judge that institute's downloaded files content revised by (mala fide or favourably), not the script file of standard content, then do not store institute's downloaded files.
In the description of present embodiment, be example with the javascript script file all, but those skilled in the art understand that the related file of file download equipment of the present invention is not limited to the javascript script file, can also comprise other all files that need call from server side.
Fig. 2 shows the schematic flow sheet of document down loading method according to another embodiment of the present invention, and this method is suitable for carrying out in a kind of file download equipment.This method starts from step 201, in step S201, when the browser side loads the A Website page of embodiment as shown in Figure 1, receive described A Website page to the call request of javascript script file jquery-1.7.1.min.js, alternatively, this call request also comprises specific fields localFile and value thereof.Subsequently, in step 202, judge according to the call request that in step S201, receives whether the file of asking is present in (for example, in the file storage unit 104 of file download equipment) in the file download equipment.
Particularly, according to this call request whether the filename that is complementary of the file in the APMB package download equipment judge whether to exist the file of asking.According to a real mode of the present invention, if this call request comprises specific fields, and the filename of the file of the value that is associated with this specific fields in downloading with file is complementary, and then there is this document in judgement; If the value that the specific fields that comprises of this call request is associated does not match with the filename of the file in the file download equipment, or this call request do not comprise this specific fields, and then there is not the file of asking in judgement.
Next, if there is the script file to call to some extent, then carry out step 203, directly obtain this document from this locality and load by browser;
On the other hand, if there is no the script file that will call then carry out step 204, downloads this document according to this call request from corresponding server.
After downloading file, enter step 205, obtain the particular attribute-value of institute's downloaded files; In the present embodiment, by the hash algorithm such as md5 institute's downloaded files is calculated, obtained its particular attribute-value.
Next, judge in step 206 whether the particular attribute-value of this document and the value of the specific fields that call request comprises are complementary;
If coupling enters step 207, in this locality storage institute's downloaded files and with this particular attribute-value name;
If do not match, directly enter step 208 and finish, do not preserve institute's downloaded files.
File download equipment provided by the invention and corresponding document down loading method, reality has proposed an agreement that replaces Internet resources with local file.According to this agreement, preset file storage unit in this locality, the Internet resources of storage such as script file are named script file with its particular attribute-value (for example md5 value); And the website increases specific fields when in its content of pages script file being called, field localFile by name for example, and with the particular attribute-value (for example md5 value) of this script file this field is carried out assignment.Like this, when browser access uses the website of this agreement, can directly call the script file in the file storage unit, download the response speed that script file improves visit thereby reduce from described website.
Further, because the file that file storage unit of the present invention is stored is all named with its particular attribute-value (for example md5 value), checking by localFile field in the call request, the reliability of file has guaranteed to be called, make the website in the reliable resource of using oneself, also have an opportunity to call quickly the Internet resources from other sources.
B11, as arbitrary described method among the B7-10, wherein said particular attribute-value is for carrying out the value that obtains after the Hash calculation to file content.B12, as arbitrary described method among the B7-11, wherein said file is the javascript script file.
Intrinsic not relevant with any certain computer, virtual system or miscellaneous equipment with demonstration at this algorithm that provides.Various general-purpose systems also can be with using based on the teaching at this.According to top description, it is apparent constructing the desired structure of this type systematic.In addition, the present invention is not also at any certain programmed language.Should be understood that and to utilize various programming languages to realize content of the present invention described here, and the top description that language-specific is done is in order to disclose preferred forms of the present invention.
In the instructions that provides herein, a large amount of details have been described.Yet, can understand, embodiments of the invention can be put into practice under the situation of these details not having.In some instances, be not shown specifically known method, structure and technology, so that not fuzzy understanding of this description.
Similarly, be to be understood that, in order to simplify the disclosure and to help to understand one or more in each inventive aspect, in the description to exemplary embodiment of the present invention, each feature of the present invention is grouped together in single embodiment, figure or the description to it sometimes in the above.Yet the method for the disclosure should be construed to the following intention of reflection: namely the present invention for required protection requires the more feature of feature clearly put down in writing than institute in each claim.Or rather, as following claims reflected, inventive aspect was to be less than all features of the disclosed single embodiment in front.Therefore, follow claims of embodiment and incorporate this embodiment thus clearly into, wherein each claim itself is as independent embodiment of the present invention.
Those skilled in the art are appreciated that and can adaptively change and they are arranged in one or more equipment different with this embodiment the module in the equipment among the embodiment.Can become a module or unit or assembly to the module among the embodiment or unit or combination of components, and can be divided into a plurality of submodules or subelement or sub-component to them in addition.In such feature and/or process or unit at least some are mutually repelling, and can adopt any combination to disclosed all features in this instructions (comprising claim, summary and the accompanying drawing followed) and so all processes or the unit of disclosed any method or equipment make up.Unless clearly statement in addition, disclosed each feature can be by providing identical, being equal to or the alternative features of similar purpose replaces in this instructions (comprising claim, summary and the accompanying drawing followed).
In addition, those skilled in the art can understand, although embodiment more described herein comprise some feature rather than further feature included among other embodiment, the combination of features of different embodiment means and is within the scope of the present invention and forms different embodiment.For example, in the following claims, the one of any of embodiment required for protection can be used with array mode arbitrarily.
Each parts embodiment of the present invention can realize with hardware, perhaps realizes with the software module of moving at one or more processor, and perhaps the combination with them realizes.It will be understood by those of skill in the art that and to use microprocessor or digital signal processor (DSP) to realize according to some or all some or repertoire of parts in the equipment of the embodiment of the invention in practice.The present invention can also be embodied as for part or all equipment or the device program (for example, computer program and computer program) of carrying out method as described herein.Such realization program of the present invention can be stored on the computer-readable medium, perhaps can have the form of one or more signal.Such signal can be downloaded from internet website and obtain, and perhaps provides at carrier signal, perhaps provides with any other form.
It should be noted above-described embodiment the present invention will be described rather than limit the invention, and those skilled in the art can design alternative embodiment under the situation of the scope that does not break away from claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and is not listed in element or step in the claim.Being positioned at word " " before the element or " one " does not get rid of and has a plurality of such elements.The present invention can realize by means of the hardware that includes some different elements and by means of the computing machine of suitably programming.In having enumerated the unit claim of some devices, several in these devices can be to come imbody by same hardware branch.Any order is not represented in the use of word first, second and C grade.Can be title with these word explanations.
Claims (10)
1. a file download equipment comprises
The webpage parsing module is suitable for receiving the described page to the call request of file when the browser side Web page loading page;
The file judge module is suitable for judging whether described file is present in the file storage unit that the browser side presets; And
The file download module is suitable for
If there is described file, then directly from described file storage unit, obtain described file; With
If there is not described file, then download described file according to described call request.
2. equipment as claimed in claim 1, store a plurality of files with the name of its particular attribute-value in the described file storage unit, wherein the file judge module be suitable for according to described call request whether comprise with described file storage unit in the filename that is complementary of file judge whether to exist described file.
3. equipment as claimed in claim 2, wherein the file judge module is suitable for
If described call request comprises specific fields, and the filename of the value that is associated with described specific fields and the file in the file storage unit is complementary, and then there is described file in judgement;
If the value that the specific fields that comprises of described call request is associated does not match with the filename of the file in the described file storage unit, or described call request do not comprise described specific fields, and then there is not described file in judgement.
4. equipment as claimed in claim 3 also comprises:
The filename computing module is suitable for obtaining the particular attribute-value of described file download module downloaded files, and
File storage module is suitable for
If the value of the specific fields that described file attribute value and described call request comprise is complementary, storage institute's downloaded files and name with this particular attribute-value in file storage unit then; With
If the value of the specific fields that described file attribute value and described call request comprise does not match, then do not store institute's downloaded files.
5. as any described equipment among the claim 1-4, the value of wherein said particular attribute-value for file content being carried out obtain after the Hash calculation.
6. as any described equipment among the claim 1-5, wherein said file is the javascript script file.
7. a document down loading method comprises
When the browser side Web page loading page, receive the described page to the call request of file;
Judge whether described file is present in the file storage unit that the browser side presets;
If there is described file, then directly from described storage unit, obtain described file; With
If there is not described file, then download described file according to described call request from described webpage corresponding server.
8. method as claimed in claim 7, store a plurality of files with the name of its particular attribute-value in the described file storage unit, wherein determining step according to described call request whether comprise with described file storage unit in the filename that is complementary of file judge whether to exist described file.
9. method as claimed in claim 8, wherein determining step comprises
If described call request comprises specific fields, and the filename of the value that is associated with described specific fields and the file in the file storage unit is complementary, and then there is described file in judgement;
If the value that the specific fields that comprises of described call request is associated does not match with the filename of the file in the described file storage unit, or described call request do not comprise described specific fields, and then there is not described file in judgement.
10. method as claimed in claim 9 also comprises
Obtain the particular attribute-value of institute's downloaded files, and
If the value of the specific fields that described file attribute value and described call request comprise is complementary, storage institute's downloaded files and name with this particular attribute-value in file storage unit then;
If the value of the specific fields that described file attribute value and described call request comprise does not match, then do not store institute's downloaded files.
Priority Applications (2)
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|---|---|---|---|
| CN201610237730.2A CN105955980B (en) | 2013-05-31 | 2013-05-31 | File downloading device and method |
| CN201310214543.9A CN103258055B (en) | 2013-05-31 | 2013-05-31 | A kind of file download equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310214543.9A CN103258055B (en) | 2013-05-31 | 2013-05-31 | A kind of file download equipment and method |
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|---|---|---|---|
| CN201610237730.2A Division CN105955980B (en) | 2013-05-31 | 2013-05-31 | File downloading device and method |
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|---|---|
| CN103258055A true CN103258055A (en) | 2013-08-21 |
| CN103258055B CN103258055B (en) | 2016-05-11 |
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Cited By (2)
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| CN103678535A (en) * | 2013-12-02 | 2014-03-26 | 北京奇虎科技有限公司 | Browser and downloading method thereof |
| CN108460053A (en) * | 2017-02-20 | 2018-08-28 | 平安科技（深圳）有限公司 | File memory method and device |
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| CN107483591A (en) * | 2017-08-22 | 2017-12-15 | 中国银行股份有限公司 | A kind of script file synchronous method and device |
| CN112214703B (en) * | 2019-07-10 | 2023-11-07 | 腾讯科技（深圳）有限公司 | Webpage loading method, webpage loading device, computer readable storage medium and computer equipment |
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| 王嘉杰: "面向博客领域的垂直搜索引擎的研究与实现", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
| 芦苇: "关于缓存是否构成合理使用的研究", 《万方学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103678535A (en) * | 2013-12-02 | 2014-03-26 | 北京奇虎科技有限公司 | Browser and downloading method thereof |
| CN108460053A (en) * | 2017-02-20 | 2018-08-28 | 平安科技（深圳）有限公司 | File memory method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105955980A (en) | 2016-09-21 |
| CN103258055B (en) | 2016-05-11 |
| CN105955980B (en) | 2019-12-20 |
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