CN111352909A - A file saving and loading method, device, electronic device and storage medium - Google Patents

Abstract

The invention discloses a file saving and loading method, a device, an electronic device and a storage medium, comprising the following steps: acquiring a main file storage instruction; performing storable conversion on the cache list associated with the main file to obtain a storage list, and combining the storage list and the main file to generate a combined file; and storing the merged file. By applying the technical scheme, the user can save all the operation steps in the process of using the electronic equipment, load the operation steps on different equipment and reproduce all the operation steps, so that the teaching plan can be written conveniently, the conference document can be made, the time for making the document by the user is shortened, and the user experience and the use efficiency are improved.

Description

A file saving and loading method, device, electronic device and storage medium

technical field

The present invention relates to the field of computer technology, in particular to a file saving and loading method, device, electronic device and storage medium.

Background technique

In the modern teaching process, more and more interactive learning methods are used. Interactive learning is a new teaching method that emphasizes the combination of communication, cooperation and computer use. The rapid development of contemporary electronic technology and multimedia interaction has prompted the emergence of interactive learning. From the beginning of the 21st century to the present, more and more students have entered the classrooms of higher education, expecting to enjoy the education method (interactive learning) combined with the use of high technology. Since students in the new era have already been exposed to various high-tech products and concepts in their lives, this new teaching method is like pencil and white paper to students in traditional classrooms.

At present, electronic whiteboards are often used in the interactive teaching process in life, such as electronic whiteboards for large-screen teaching in school classrooms, electronic whiteboards for large-screen conferences, and QQ presentation whiteboards. It can be said that electronic whiteboard software has penetrated into all aspects of our work and life.

In the electronic whiteboard, a commonly used function is the undo and restore functions. At present, the undo and restore functions basically only cache the steps of undoing and restoring when the software is open.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to propose a file saving and loading method, device, Electronic equipment and storage media.

Based on the above purpose, in the first aspect, the present invention provides a file saving and loading method, including:

Get the instruction to save the main file;

Converting the cache list associated with the master file into a storage list to obtain a storage list, and merging the storage list with the master file to generate a merged file;

Save the merged file.

In some implementation manners, the storage list is obtained by converting the cache list associated with the main file into a storage list, which specifically includes:

Obtain all operation information in the cache list;

classifying and defining the operation information according to a preset definition standard, and marking the sorting time point;

Perform storable conversion on the operation information according to the classification definition and the sorting time point to generate storable information;

The storage list is generated by integrating the storable information.

In some embodiments, the integration of the storable information to generate the storage list specifically includes:

classifying the storable information according to the classification definition to generate storable groups of different types;

The storable groups are merged into a storage list according to the classification definition.

In some implementation manners, generating a merged file by merging the storage list with the main file specifically includes:

The storage list is incorporated into the master file.

In some embodiments, before the acquiring and saving the master file instruction, further includes:

generating a control backplane, and creating the cache list, where the cache list at least includes: a revocation linked list;

Obtain the user's operation information;

The operation information is added to the revocation list according to the classification definition.

In some implementation manners, the adding the operation information after the revocation list according to the function subclass further includes:

The cache list further includes: restoring the linked list;

When the operation information is an undo operation, the last piece of the operation information in the undo linked list is removed and added to the end of the recovery linked list.

When the operation information is a recovery operation, the last operation information in the recovery linked list is removed and added to the end of the revocation linked list.

In some embodiments, after saving the combined file, the method further includes:

When the merged file is read again, the storage list is preferentially read, and the storage list is de-storable and converted to generate the cache list.

In some embodiments, the method applies at least to: interactive screens, interactive whiteboards, and interactive projection screens.

In a second aspect, the present invention also provides a file saving and loading device, including:

Get the module, get the instruction to save the main file;

a merging module, which converts the cache list associated with the master file into a storage list, and merges the storage list with the master file to generate a merged file;

The storage module saves the merged file.

In some implementations, the merging module converts the cache list associated with the main file into a storage list to obtain a storage list, which specifically includes:

Obtain all operation information in the cache list;

classifying and defining the operation information according to a preset definition standard, and marking the sorting time point;

Perform storable conversion on the operation information according to the classification definition and the sorting time point to generate storable information;

The storage list is generated by integrating the storable information.

In some embodiments, the merging module integrates the storable information to generate the storage list, which specifically includes:

classifying the storable information according to the classification definition to generate storable groups of different types;

The storable groups are merged into a storage list according to the classification definition.

In some embodiments, the merging module merges the storage list with the main file to generate a merged file, which specifically includes:

The storage list is incorporated into the master file.

In some embodiments, before the obtaining module obtains the instruction to save the master file, it further includes:

generating a control backplane, and creating the cache list, where the cache list at least includes: a revocation linked list;

Obtain the user's operation information;

The operation information is added to the revocation list according to the classification definition.

In some embodiments, the obtaining module adds the operation information to the revocation list according to the function subclass, and further includes:

The cache list further includes: restoring the linked list;

When the operation information is an undo operation, the last piece of the operation information in the undo linked list is removed and added to the end of the recovery linked list.

When the operation information is a recovery operation, the last operation information in the recovery linked list is removed and added to the end of the revocation linked list.

In some embodiments, after the storage module saves the merged file, it further includes:

When the merged file is read again, the storage list is preferentially read, and the storage list is de-storable and converted to generate the cache list.

In some embodiments, the apparatus is applied to at least: interactive screens, interactive whiteboards, and interactive projection screens.

In a third aspect, the present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implements the above-mentioned file when executing the program Save and load methods.

In a fourth aspect, the present invention also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a terminal device, the terminal device is made to execute the claims as described above. How to save and load files as described.

As can be seen from the above, the file saving and loading method, device, electronic device and storage medium provided by the present invention include: obtaining an instruction for saving a master file; converting a cache list associated with the master file to a storable conversion Obtaining a storage list, merging the storage list with the main file to generate a merged file; and saving the merged file. By applying the technical solution of the present application, the user can save all the operation steps in the process of using the electronic device, and can load and reproduce all the operation steps on different devices, which is very convenient for writing lesson plans, making meeting documents, reducing It saves the time for users to make documents, and improves the user experience and usage efficiency.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic flowchart of a file saving and loading method proposed by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a file saving and loading device according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

The embodiment of the present invention provides a file saving and loading method. It should be noted that, in the embodiment of the present invention, the file saving and loading are storage and reading functions established in the file system, and the file system is used by the operating system to explicitly store Methods and data structures for files on a device (commonly a disk, but also NAND Flash-based solid-state drives) or partitions; that is, a method for organizing files on a storage device. The software organization responsible for managing and storing file information in the operating system is called a file management system, or file system for short. The file system may exist in an electronic device that can use a storage device, such as a personal computer, a smart mobile device, an interactive device, a smart home device, and the like. As long as different devices can complete the corresponding functions of the file system, their devices will not affect the protection scope of the present invention.

Further, in order to effectively utilize the file saving and loading function in the process of interactive processing, the user's operations on the screen or electronic whiteboard are stored for next use. In a specific application scenario, the method is at least applied to: interactive screen, interactive whiteboard, and interactive projection.

As shown in FIG. 1 , it is a schematic flowchart of a file saving and loading method provided by an embodiment of the present invention. The method specifically includes the following steps:

Step 101, obtaining an instruction to save the master file.

The purpose of this step is to obtain instructions from the user to save. There are many ways to obtain the instruction, such as: obtaining the user's click command, obtaining the user's gesture command, obtaining the user's voice command, etc., as long as the different methods of obtaining the command can achieve the purpose of obtaining the saving command, different methods are used. It will not affect the protection scope of the present invention.

Further, in order to effectively record all the operations of the user, so that the user has traces to follow when the operation process needs to be traced back, in a preferred embodiment of the present application, before the acquiring and saving the master file instruction, it also includes:

generating a control backplane, and creating the cache list, where the cache list at least includes: a revocation linked list;

Obtain the user's operation information;

The operation information is added to the revocation list according to the classification definition.

Further, in order to record the process of undoing the operation, and the user can perform the reply operation when the user needs to reply to the revoked operation, in a preferred embodiment of the present application, the operation information is added according to the function subclass. After the revocation list, it also includes:

The cache list further includes: restoring the linked list;

When the operation information is an undo operation, the last piece of the operation information in the undo linked list is removed and added to the end of the recovery linked list.

When the operation information is a recovery operation, the last operation information in the recovery linked list is removed and added to the end of the revocation linked list.

In a specific application scenario, a version control backplane is created, corresponding to each application method, on the basis of the version control backplane, corresponding subclasses are created, and corresponding methods are implemented. Create two version control linked lists to back up each operation behavior, one linked list for undo operations and one linked list for restore operations. When an undo operation occurs, we remove the last action of the undo list and add it to the end of the restore list. When a restore operation occurs, we remove and add the last operation behavior of the restore list to the end of the undo list. When the user needs to save the file, a corresponding save instruction will be given: click the save button, point to the save button, and so on.

Step 102 , convert the cache list associated with the main file into a storage list to obtain a storage list, and combine the storage list with the main file to generate a combined file.

The purpose of this step is to convert the cache list into a storable list to obtain a storable list, and store the list and the main file together. Among them, there are many ways to convert the cache list into a storable list, such as: converting the cache list into a storage list one by one, classifying the elements in the cache list and then converting, sorting the elements in the cache list according to their importance At the same time, there are many ways to combine the storage list and the main file into a combined file, such as: connecting the storage list after the main file to form a single save file, placing the storage list before the main file to form a single save file, The storage list and the main file are saved as two associated files and then merged into one file package, etc. As long as the different conversion methods and different combining methods can achieve the corresponding purpose, the different methods will not affect the protection scope of the present invention.

Further, in order to classify the operation information according to different operation types to facilitate storage, and at the same time, in order to prevent the operation information from being disordered in order, the operation information cannot be read in an orderly manner during reading. In a preferred embodiment of the present application, the storage list obtained by converting the cache list associated with the master file into a storage list specifically includes:

Obtain all operation information in the cache list;

classifying and defining the operation information according to a preset definition standard, and marking the sorting time point;

Perform storable conversion on the operation information according to the classification definition and the sorting time point to generate storable information;

The storage list is generated by integrating the storable information.

Further, in order to classify and manage the storable information according to different types, and when creating a storage list, it can be quickly stored according to the type to save the time of item-by-item storage. In a preferred embodiment of the present application, the integration of the storable information to generate the storage list specifically includes:

classifying the storable information according to the classification definition to generate storable groups of different types;

The storable groups are merged into a storage list according to the classification definition.

Further, in order to effectively save storage resources, and when the file is read again, the content in the storage list can be quickly read to save reading time. In a preferred embodiment of the present application, the combination of the storage list and the main file to generate a combined file specifically includes:

The storage list is incorporated into the master file.

In a specific application scenario, corresponding to each operation, create a different version control subclass, record the time point of its creation, and add it to the undo operation list. When the user needs to save all the operation steps to the file, he needs to traverse the undo linked list and restore all the operation information in the linked list, and turn each operation information into a serializable object. In the linked list, it is divided into different control subclass names according to the type of different operation behaviors, and each operation behavior is stored in a subclass grouping manner during storage, and the time point of each operation behavior is marked. After the establishment of the storage list is completed, the two serialized new linked lists are written into the corresponding files by using the file operation method, and the storage list is connected to the main file to generate a single merged file for storage.

Step 103: Save the merged file.

Further, in order to quickly restore the storage list to the linked list state and reduce the time for reading the entire file when the file is read again. In a preferred embodiment of the present application, after saving the merged file, the method further includes:

When the merged file is read again, the storage list is preferentially read, and the storage list is de-storable and converted to generate the cache list.

In a specific application scenario, after the user finishes storing the file, when the user needs to load the existing file to restore the operation site, read the serialized two linked lists from the file, and then traverse all the subclasses in the two linked lists and For all operation information in the subclass, deserialize each operation information to generate the corresponding undo and restore linked list. With the undo and restore linked list, in order to quickly generate the previous operation steps, it is only necessary to re-execute each operation information according to the different time points of the different operation information in each subclass according to the undo linked list, and then the scene of the user's last operation can be restored. .

By applying the technical solution of the present application, the solution obtains an instruction to save the master file; converts the cache list associated with the master file into a storage list to obtain a storage list, and combines the storage list and the master file to generate Merge files; save the merged files. By applying the technical solution of the present application, the user can save all the operation steps in the process of using the electronic device, and can load and reproduce all the operation steps on different devices, which is very convenient for writing lesson plans, making meeting documents, reducing It saves the time for users to make documents, and improves the user experience and usage efficiency.

In order to further illustrate the technical idea of the present invention, the technical solutions of the present invention are now described with reference to specific application scenarios.

In this specific application scenario, before explaining this method, all operations with undo and redo functions in the electronic whiteboard are given: 1. Handwriting writing, 2. Handwriting erasing, 3. Handwriting cutting, 4. Object creation, 5. Object copying, 6. Object moving, 7. Object deletion, 8. Object grouping, 9. Object ungrouping, 10. Object level adjustment, 11. Object text change, 12. Clear screen, etc.

The specific implementation method is as follows:

Create a version control base class BrushesVersion.

Corresponding to each object, inherit the version control base class BrushesVersion, create corresponding subclasses, and implement corresponding methods.

Create two version control linked lists, back up each operation object, one linked list for undo operations, and one linked list for restore operations.

For each operation, create a different version control subclass object and add it to the undo operation list.

When an undo operation occurs, we remove the last element of the undo list and add it to the end of the restore list.

When a restore operation occurs, we remove the last element of the restore list and add it to the end of the undo list.

When the user needs to save all the operation steps to the file, we need to traverse all the elements of the two linked lists and turn each element into a serializable object. Serialization is the process of converting the state information of an object into a form that can be stored or transmitted. Therefore, we need to define the serializable object corresponding to the above object.

We write the serialized two new linked lists into the corresponding files using the file operation method.

When the user needs to load an existing file to restore the operation site, we read the serialized two linked lists from the file, then traverse all the elements in the two linked lists, deserialize each element, and generate the corresponding Undo and restore linked lists. Deserialize is the process of converting stored or transmitted data into objects.

With the undo and restore queues, you only need to re-execute each element operation according to the undo queue to restore the scene of the user's last operation.

By applying the technical solution of the present application, the solution obtains an instruction to save the master file; converts the cache list associated with the master file into a storage list to obtain a storage list, and combines the storage list and the master file to generate Merge files; save the merged files. By applying the technical solution of the present application, the user can save all the operation steps in the process of using the electronic device, and can load and reproduce all the operation steps on different devices, which is very convenient for writing lesson plans, making meeting documents, reducing It saves the time for users to make documents, and improves the user experience and usage efficiency.

Based on the same inventive concept, an embodiment of the present invention also provides a file saving and loading device, as shown in FIG. 2 , including:

Obtaining module 201, obtaining and saving the master file instruction;

The merging module 202, converts the cache list associated with the master file into a storage list, and merges the storage list with the master file to generate a merged file;

The storage module 203 saves the merged file.

In a specific application scenario, the merging module 202 performs storability conversion on the cache list associated with the main file to obtain a storage list, which specifically includes:

Obtain all operation information in the cache list;

classifying and defining the operation information according to a preset definition standard, and marking the sorting time point;

Perform storable conversion on the operation information according to the classification definition and the sorting time point to generate storable information;

The storage list is generated by integrating the storable information.

In a specific application scenario, the merging module 202 integrates the storable information to generate the storage list, which specifically includes:

classifying the storable information according to the classification definition to generate storable groups of different types;

The storable groups are merged into a storage list according to the classification definition.

In a specific application scenario, the merging module 202 merges the storage list and the main file to generate a merged file, which specifically includes:

The storage list is incorporated into the master file.

In a specific application scenario, before the obtaining module 201 obtains the instruction to save the master file, it further includes:

generating a control backplane, and creating the cache list, where the cache list at least includes: a revocation linked list;

Obtain the user's operation information;

The operation information is added to the revocation list according to the classification definition.

In a specific application scenario, the obtaining module 201 adds the operation information to the revocation list according to the function subclass, and further includes:

The cache list further includes: restoring the linked list;

When the operation information is an undo operation, the last piece of the operation information in the undo linked list is removed and added to the end of the recovery linked list.

When the operation information is a recovery operation, the last operation information in the recovery linked list is removed and added to the end of the revocation linked list.

In a specific application scenario, after the storage module 203 saves the merged file, it further includes:

When the merged file is read again, the storage list is preferentially read, and the storage list is de-storable and converted to generate the cache list.

In a specific application scenario, the device is at least applied to: an interactive screen, an interactive whiteboard, and an interactive projection screen.

The devices in the foregoing embodiments are used to implement the corresponding methods in the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

Based on the same inventive concept, an embodiment of the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implements the above when executing the program How to save and load files as described.

The electronic devices in the foregoing embodiments are used to implement the corresponding methods in the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

Based on the same inventive concept, an embodiment of the present invention also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a terminal device, the terminal device is made to execute the above The described file saving and loading method.

The storage medium of the foregoing embodiment is used to implement the corresponding method in the foregoing embodiment, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them. Although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these Modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and protection scope of the technical solutions of the embodiments of the present invention.

Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the spirit of the present invention, the above embodiments or There may also be combinations between technical features in different embodiments, steps may be carried out in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

Additionally, well known power/ground connections to integrated circuit (IC) chips and other components may or may not be shown in the figures provided in order to simplify illustration and discussion, and in order not to obscure the present invention. . Furthermore, devices may be shown in block diagram form in order to avoid obscuring the present invention, and this also takes into account the fact that the details regarding the implementation of these block diagram devices are highly dependent on the platform on which the invention will be implemented (i.e. , these details should be fully within the understanding of those skilled in the art). Where specific details (eg, circuits) are set forth to describe exemplary embodiments of the invention, it will be apparent to those skilled in the art that these specific details may be used without or with changes The present invention is carried out below. Accordingly, these descriptions are to be considered illustrative rather than restrictive.

Although the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations to these embodiments will be apparent to those of ordinary skill in the art from the foregoing description. For example, other memory architectures (eg, dynamic RAM (DRAM)) may use the discussed embodiments.

Embodiments of the present invention are intended to cover all such alternatives, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (18)

1. A file saving and loading method is characterized by comprising the following steps:

acquiring a main file storage instruction;

performing storable conversion on the cache list associated with the main file to obtain a storage list, and combining the storage list and the main file to generate a combined file;

and storing the merged file.

2. The method for saving and loading files according to claim 1, wherein the performing a storable transformation on the cache list associated with the master file to obtain a storage list specifically comprises:

acquiring all operation information in the cache list;

classifying and defining the operation information according to a preset definition standard, and marking sequencing time points;

performing storage conversion on the operation information according to the classification definition and the sorting time point to generate storage information;

and integrating the storable information to generate the storage list.

3. The method for saving and loading files according to claim 2, wherein the integrating the storable information to generate the storage list specifically comprises:

classifying the storable information according to the classification definition to generate different types of storable groups;

and merging the storable groups into a storage list according to the classification definition.

4. The method for saving and loading a file according to claim 1, wherein the merging the storage list and the master file to generate a merged file specifically comprises:

the storage list is merged into the master file.

5. The method of claim 1, wherein before the obtaining the main file saving instruction, the method further comprises:

generating a control bottom plate, and creating the cache list, wherein the cache list at least comprises: canceling the linked list;

acquiring operation information of a user;

and adding the operation information to the revocation list according to the classification definition.

6. The method of claim 5, wherein the adding the operation information to the revocation list according to the function subclass further comprises:

the cache list further includes: recovering the linked list;

and when the operation information is the revocation operation, removing the last operation information in the revocation linked list and adding the operation information to the tail of the recovery linked list.

And when the operation information is recovery operation, removing the last operation information in the recovery linked list and adding the operation information to the tail of the revocation linked list.

7. The method for saving and loading a file according to claim 1, further comprising, after the saving the merged file:

and when the merged file is read again, preferentially reading the storage list, and performing anti-volatile conversion on the storage list to generate the cache list.

8. The method of claim 1, wherein the method is at least applied to: interactive screens, interactive whiteboards, and interactive projection screens.

9. A file save and load device, comprising:

the acquisition module acquires a main file storage instruction;

the merging module is used for performing storable conversion on the cache list associated with the main file to obtain a storage list, and merging the storage list and the main file to generate a merged file;

and the storage module is used for storing the merged file.

10. The apparatus for saving and loading files according to claim 9, wherein the merge module performs a storage transformation on the cache list associated with the master file to obtain a storage list, and specifically comprises:

acquiring all operation information in the cache list;

classifying and defining the operation information according to a preset definition standard, and marking sequencing time points;

performing storage conversion on the operation information according to the classification definition and the sorting time point to generate storage information;

and integrating the storable information to generate the storage list.

11. The apparatus for saving and loading files according to claim 10, wherein the merge module integrates the storable information to generate the storage list, specifically comprising:

classifying the storable information according to the classification definition to generate different types of storable groups;

and merging the storable groups into a storage list according to the classification definition.

12. The device for saving and loading files according to claim 9, wherein the merge module merges the storage list with the master file to generate a merged file, and specifically comprises:

the storage list is merged into the master file.

13. The apparatus according to claim 9, wherein before the obtaining module obtains the instruction for saving the main file, the method further comprises:

generating a control bottom plate, and creating the cache list, wherein the cache list at least comprises: canceling the linked list;

acquiring operation information of a user;

and adding the operation information to the revocation list according to the classification definition.

14. The apparatus for saving and loading files according to claim 13, wherein the obtaining module adds the operation information to the revocation list according to the function subclass, further comprising:

the cache list further includes: recovering the linked list;

and when the operation information is the revocation operation, removing the last operation information in the revocation linked list and adding the operation information to the tail of the recovery linked list.

And when the operation information is recovery operation, removing the last operation information in the recovery linked list and adding the operation information to the tail of the revocation linked list.

15. The apparatus according to claim 9, wherein after the storing module stores the merged file, the apparatus further comprises:

and when the merged file is read again, preferentially reading the storage list, and performing anti-volatile conversion on the storage list to generate the cache list.

16. A file saving and loading apparatus as claimed in claim 9, wherein the apparatus is adapted to at least: interactive screens, interactive whiteboards, and interactive projection screens.

17. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the file saving and loading method according to any one of claims 1 to 8 when executing the program.

18. A computer-readable storage medium having stored therein instructions that, when executed on a terminal device, cause the terminal device to perform the file saving and loading method according to any one of claims 1 to 8.

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