CN106775286B - A kind of erasure detection method and device of screen area - Google Patents
A kind of erasure detection method and device of screen area Download PDFInfo
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- CN106775286B CN106775286B CN201611029453.2A CN201611029453A CN106775286B CN 106775286 B CN106775286 B CN 106775286B CN 201611029453 A CN201611029453 A CN 201611029453A CN 106775286 B CN106775286 B CN 106775286B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04845—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/80—Creating or modifying a manually drawn or painted image using a manual input device, e.g. mouse, light pen, direction keys on keyboard
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- User Interface Of Digital Computer (AREA)
Abstract
The present invention is applicable in field of computer technology, provide a kind of erasure detection method and device of screen area, the described method includes: obtaining the shape of erasing rubber selected by user and dividing screen area to be erased according to the shape, to obtain multiple subregions, obtain position of the erasing rubber in screen area to be erased, and the subregion intersected according to position acquisition with erasing rubber, obtain erasing rubber and at a distance from the subregion of erasing rubber intersection, when distance is less than preset distance threshold, the subregion of intersection is clean labeled as being wiped free of, when detecting that all subregions are marked as being wiped free of clean, it exports screen area to be erased and is wiped free of clean prompting message.The present invention, which is realized, determines whether subregion is wiped free of completely by the distance of subregion and erasing rubber, and then determines whether screen area is wiped free of completely, so that effectively improving detection screen area is wiped free of clean efficiency.
Description
Technical field
The invention belongs to field of computer technology more particularly to a kind of erasure detection method and devices of screen area.
Background technique
Erasing function is not only the necessary functions of the softwares such as most of drawing, study, picture processing, and is plate
The preferred function that the writing pencil of the equipment such as computer, smart phone has, the appearance of the function improve at handwriting input and picture
The humanization level of reason allows users to immediately selectively modify the person's handwriting of input or image content.
When wiping the content in screen area, whether clean progress is only wiped free of to screen area by human eye
Judgement is easy to appear omission, and the equipment such as computer, smart phone completely are judged to be adopted to whether screen area is wiped free of
Method is that the pixel in the screen area is singly checked and judged, (includes when screen area is larger
Pixel is more) when, this method efficiency is lower, reduces the response speed of equipment.
Summary of the invention
The purpose of the present invention is to provide a kind of erasure detection method and devices of screen area, it is intended to solve due to existing
Technology can not provide the effective detection screen area of one kind and be wiped free of clean method, cause to determine whether screen area is wiped free of
When clean the problem of inefficiency.
On the one hand, the present invention provides a kind of erasure detection method of screen area, the method includes the following steps:
It obtains the shape of erasing rubber selected by user and screen area to be erased is divided according to the shape, to obtain multiple sons
Region；
Position of the erasing rubber in the screen area to be erased is obtained, and according to the position acquisition and the rubber
Skin wipes the subregion of intersection；
The erasing rubber is obtained at a distance from the subregion of the intersection, when the distance is less than preset distance threshold
When, the subregion of the intersection is clean labeled as being wiped free of；
When detecting that all subregions are marked as being wiped free of clean, the output screen area to be erased is wiped free of dry
Net prompting message.
On the other hand, the present invention provides a kind of erasure detection device of screen area, described device includes:
Sub-zone dividing module, for obtaining the shape of erasing rubber selected by user and dividing screen to be erased according to the shape
Curtain region, to obtain multiple subregions；
Position acquisition module, for obtaining position of the erasing rubber in the screen area to be erased, and according to institute
State the subregion that position acquisition intersects with the erasing rubber；
Subregion mark module, for obtaining the erasing rubber at a distance from the subregion of the intersection, when the distance
It is when less than preset distance threshold, the subregion of the intersection is clean labeled as being wiped free of；And
Erasure completion module, for when detecting that all subregions are marked as being wiped free of clean, output to be described wait wipe
Except screen area is wiped free of clean prompting message.
The present invention obtains the shape of erasing rubber selected by user and divides screen area to be erased according to the shape, more to obtain
Sub-regions obtain position of the erasing rubber in screen area to be erased, and according to the position acquisition and rubber in erase process
Skin wipes the subregion of intersection, and then obtains the distance of the subregion of erasing rubber and intersection, when the distance is less than preset apart from threshold
It is when value that the subregion of the intersection is clean labeled as being wiped free of, thus when detecting all subregions of screen area to be erased all
When being marked as being wiped free of clean, exports screen area to be erased and be wiped free of clean prompting message.In this way, the present invention is effectively
Improve whether screen area is wiped free of clean detection efficiency.
Detailed description of the invention
Fig. 1 is the implementation flow chart of the erasure detection method for the screen area that the embodiment of the present invention one provides；
Fig. 2 is the structure chart of the erasure detection device of screen area provided by Embodiment 2 of the present invention；And
Fig. 3 is the structure chart of the erasure detection device for the screen area that the embodiment of the present invention three provides；
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment:
Embodiment one:
Fig. 1 shows the implementation process of the erasure detection method of the screen area of the offer of the embodiment of the present invention one, in order to just
In explanation, only parts related to embodiments of the present invention are shown, and details are as follows:
In step s101, it obtains the shape of erasing rubber selected by user and screen area to be erased is divided according to shape, with
Obtain multiple subregions.
The embodiment of the present invention is suitable for computer, smart phone etc. and user is supported to wipe the input content of screen area
The smart machine removed.Erasing function is commonly known as erasing rubber in user interface, therefore when the erasing life for receiving user's input
When enabling, the shape of erasing rubber selected by user is obtained, and screen area to be erased is divided by multiple sons according to the shape of erasing rubber
Region.In the specific implementation process, when screen area to be erased is divided into multiple subregions, the subregion of intersection may be present,
Screen area to be erased is divided completely, and the subregion shape, the size that obtain after dividing are identical.
Preferably, in the specific implementation process, the common shape of erasing rubber is square or round, therefore can be according to rubber
Skin wipes the square that can be covered all or circular shape divides screen area to be erased, so that in erase process
When erasing rubber and with erasing rubber intersection subregion at a distance from it is close enough when, erasing rubber can be approximately considered and cover all intersection
Subregion, that is, the subregion intersected have been wiped free of completely, thus during the subregion for reducing label intersection is wiped free of completely
Error.
In step s 102, position of the erasing rubber in screen area to be erased is obtained, and according to position acquisition and rubber
Wipe the subregion of intersection.
In embodiments of the present invention, position of the erasing rubber in screen area to be erased is obtained in real time in erase process,
And the subregion intersected in screen area to be erased with the position is obtained, further include and the position in the subregion intersected with the position
Set the subregion of overlapping.When there are multiple subregions intersected with erasing rubber, all subregions intersected with erasing rubber of acquisition.
Preferably, when there are multiple subregions intersected with erasing rubber, the son each intersected with erasing rubber can first be detected
It is clean whether region is marked as being wiped free of, and obtains wherein be not labeled as being wiped free of clean subregion according to testing result,
To avoid repeatedly marking same sub-regions, the labeling effciency of the subregion in step below is improved.
In step s 103, erasing rubber is obtained at a distance from the subregion of intersection, when distance is less than preset distance threshold
When, the subregion of intersection is clean labeled as being wiped free of.
In embodiments of the present invention, according to erasing rubber and the subregion intersected with erasing rubber in the position of screen area to be erased
The center point coordinate for obtaining erasing rubber and the subregion intersected with erasing rubber respectively is set, and is intersected according to erasing rubber and with erasing rubber
Subregion center point coordinate obtain both distance, by the distance compared with preset distance threshold, when the distance is less than
When preset distance threshold, it is completely overlapped to be approximately considered the subregion that erasing rubber intersects with the erasing rubber, therefore, can be by the phase
The subregion of friendship is clean labeled as being wiped free of.
Preferably, distance threshold can be configured according to the detection accuracy of equipment or user, to improve the intelligence of equipment
And hommization.Specifically, distance threshold can choose lesser value, so that when erasing rubber and the subregion intersected with erasing rubber overlapping
The subregion for being just approximately considered erasing rubber when area is more and intersecting with erasing rubber is completely overlapped, to reduce the approximation
Error.
In step S104, when detecting that all subregions are marked as being wiped free of clean, screen area to be erased is exported
Domain is wiped free of clean prompting message.
In embodiments of the present invention, when the message that the erasing for receiving user's input terminates, screen area to be erased is detected
The flag state of all subregions in domain, when all subregions all are marked as being wiped free of clean, it is believed that entire screen to be erased
Curtain region is wiped free of completely, and is exported screen area to be erased by modes such as text, voices and be wiped free of clean prompt information.
Preferably, when detect the presence of be not labeled as being wiped free of clean subregion when, obtain screen area to be erased
In it is all be not labeled as being wiped free of clean subregion, and highlight these by modes such as different colours, distinct symbols
It is not labeled as being wiped free of clean subregion, while user can be reminded to this by modes such as prompting frame prompting, voice reminders
It is not labeled as being wiped free of clean subregion a bit and be wiped again, until all subregions are marked as being wiped free of completely.
Screen area to be erased is divided into multiple subregions according to the shape of erasing rubber by the embodiment of the present invention, and is marked every
The erase status of sub-regions, is all marked as being wiped free of and completely exports screen area quilt to be erased finally by all subregions
The prompting message of erasure completion, so that effectively improving detection screen area is wiped free of clean efficiency.
Those of ordinary skill in the art will appreciate that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, the program can be stored in a computer readable storage medium,
The storage medium, such as ROM/RAM, disk, CD.
Embodiment two:
Fig. 2 shows the structures of the erasure detection device of screen area provided by Embodiment 2 of the present invention, for the ease of saying
Bright, only parts related to embodiments of the present invention are shown.
In embodiments of the present invention, guide screen region erasure completion device includes that sub-zone dividing module 21, position are obtained
Modulus block 22, subregion mark module 23, erasure completion module 24, in which:
Sub-zone dividing module 21, for obtaining the shape of erasing rubber selected by user and dividing screen to be erased according to shape
Region, to obtain multiple subregions.
The embodiment of the present invention is suitable for computer, smart phone etc. and user is supported to wipe the input content of screen area
The smart machine removed.Erasing function is commonly known as erasing rubber in user interface, therefore when the erasing life for receiving user's input
When enabling, the shape of erasing rubber selected by user is obtained, and screen area to be erased is divided by multiple sons according to the shape of erasing rubber
Region.In the specific implementation process, when screen area to be erased is divided into multiple subregions, the subregion of intersection may be present,
Screen area to be erased is divided completely, and the subregion shape, the size that obtain after dividing are identical.
Position acquisition module 22, for obtaining position of the erasing rubber in screen area to be erased, and according to position acquisition
The subregion intersected with erasing rubber.
In embodiments of the present invention, position of the erasing rubber in screen area to be erased is obtained in real time in erase process,
And the subregion intersected in screen area to be erased with the position is obtained, further include and the position in the subregion intersected with the position
Set the subregion of overlapping.When there are multiple subregions intersected with erasing rubber, all subregions intersected with erasing rubber of acquisition.
Subregion mark module 23, for obtain erasing rubber with subregion at a distance from, when distance be less than preset distance
It is when threshold value, the subregion of intersection is clean labeled as being wiped free of.
In embodiments of the present invention, according to erasing rubber and the subregion intersected with erasing rubber in the position of screen area to be erased
The center point coordinate for obtaining erasing rubber and the subregion intersected with erasing rubber respectively is set, and is intersected according to erasing rubber and with erasing rubber
Subregion center point coordinate obtain both distance, by the distance compared with preset distance threshold, when the distance is less than
When preset distance threshold, it is completely overlapped to be approximately considered the subregion that erasing rubber intersects with the erasing rubber, therefore, can be by the phase
The subregion of friendship is clean labeled as being wiped free of.
Guiding module 24 is completed, for exporting to be erased when detecting that all subregions are marked as being wiped free of clean
Screen area is wiped free of clean prompting message.
In embodiments of the present invention, when the message that the erasing for receiving user's input terminates, screen area to be erased is detected
The flag state of all subregions in domain, when all subregions all are marked as being wiped free of clean, it is believed that entire screen to be erased
Curtain region is wiped free of completely, and is exported screen area to be erased by modes such as text, voices and be wiped free of clean prompt information.
Embodiment three:
Fig. 3 shows the structure of the erasure detection device of the screen area of the offer of the embodiment of the present invention three, for the ease of saying
Bright, only parts related to embodiments of the present invention are shown, including:
Sub-zone dividing module 31, for obtaining the shape of erasing rubber selected by user and dividing screen to be erased according to shape
Region, to obtain multiple subregions；
The embodiment of the present invention is suitable for computer, smart phone etc. and user is supported to wipe the input content of screen area
The smart machine removed.Erasing function is commonly known as erasing rubber in user interface, therefore when the erasing life for receiving user's input
When enabling, the shape of erasing rubber selected by user is obtained, and screen area to be erased is divided by multiple sons according to the shape of erasing rubber
Region.In the specific implementation process, when screen area to be erased is divided into multiple subregions, the subregion of intersection may be present,
Screen area to be erased is divided completely, and the subregion shape, the size that obtain after dividing are identical.
Position acquisition module 32, for obtaining position of the erasing rubber in screen area to be erased, and according to position acquisition
The subregion intersected with erasing rubber；
In embodiments of the present invention, position of the erasing rubber in screen area to be erased is obtained in real time in erase process,
And the subregion intersected in screen area to be erased with the position is obtained, the subregion intersected with the position further includes and the position
The subregion of overlapping.When there are multiple subregions intersected with erasing rubber, all subregions intersected with erasing rubber of acquisition.
Subregion mark module 33, for obtain erasing rubber with subregion at a distance from, when distance be less than preset distance
It is when threshold value, the subregion of intersection is clean labeled as being wiped free of；
In embodiments of the present invention, according to erasing rubber and the subregion intersected with erasing rubber in the position of screen area to be erased
The center point coordinate for obtaining erasing rubber and the subregion intersected with erasing rubber respectively is set, and is intersected according to erasing rubber and with erasing rubber
Subregion center point coordinate obtain both distance, by the distance compared with preset distance threshold, when the distance is less than
When preset distance threshold, it is completely overlapped to be approximately considered the subregion that erasing rubber intersects with the erasing rubber, therefore, can be by the phase
The subregion of friendship is clean labeled as being wiped free of.
Erasure completion module 34, for exporting to be erased when detecting that all subregions are marked as being wiped free of clean
Screen area is wiped free of clean prompting message.
In embodiments of the present invention, when the message that the erasing for receiving user's input terminates, screen area to be erased is detected
The flag state of all subregions in domain, when all subregions all are marked as being wiped free of clean, it is believed that entire screen to be erased
Curtain region is wiped free of completely, and is exported screen area to be erased by modes such as text, voices and be wiped free of clean prompt information.
Wipe do not complete guiding module 35, for when detect the presence of be not labeled as being wiped free of clean subregion when,
It executes erasing and does not complete guidance operation.
In embodiments of the present invention, when detect the presence of be not labeled as being wiped free of clean subregion when, obtain wait wipe
It is not labeled as being wiped free of clean subregion except all in screen area, and prominent by modes such as different colours, distinct symbols
It shows that these are not labeled as being wiped free of clean subregion out, while can be mentioned by modes such as prompting frame prompting, voice reminders
The user that wakes up is not labeled as being wiped free of clean subregion to these to be wiped again, up to all subregions be marked as by
Erasing is clean.
It is therefore preferred that subregion mark module 33 may include that center point coordinate obtains module 331, distance obtains module
332, comparison module 333, in which:
Center point coordinate obtains module 331, for the subregion according to erasing rubber and intersection in screen area to be erased
Position obtains the center point coordinate of the subregion of erasing rubber and intersection respectively.
Distance obtains module 332, for the center point coordinate according to the subregion of the center point coordinate and intersection of erasing rubber
Obtain the distance of the subregion of erasing rubber and intersection.
Comparison module 333, for comparing distance and preset distance threshold, when distance is less than preset distance threshold
When, mark the subregion of intersection to be wiped free of completely.
Preferably, erasure completion module 34 may include detection module 341, erasure completion cue module 342, in which:
Detection module 341, for detecting the flag state of all subregions when receiving the message that erasing terminates.
Erasure completion cue module 342, for exporting to be erased when all subregions all are marked as being wiped free of clean
Screen area is wiped free of clean prompt information.
Preferably.Wiping unfinished guiding module 35 may include unmarked subregion display module 351, wipes module again
352, in which:
Unmarked subregion display module 351 is not labeled as being wiped free of in screen area to be erased completely for obtaining
Subregion, and show be not labeled as being wiped free of clean subregion.
Again module 352 is wiped, for reminding user to be wiped again to being not labeled as being wiped free of clean subregion
It removes, and detects the result that user wipes again.
Screen area to be erased is divided into multiple subregions according to the shape of erasing rubber by the embodiment of the present invention, and is marked every
The erase status of sub-regions, is all marked as being wiped free of and completely exports screen area quilt to be erased finally by all subregions
The prompting message of erasure completion, so that effectively improving detection screen area is wiped free of clean efficiency.
In embodiments of the present invention, each module of the erasure detection device of screen area can be by corresponding hardware or software mould
Block realizes that each module can be independent soft and hardware module, also can integrate as a soft and hardware module, herein not to limit
The system present invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of erasure detection method of screen area, which is characterized in that the method includes the following steps:
It obtains the shape of erasing rubber selected by user and screen area to be erased is divided according to the shape, to obtain multiple sub-districts
Domain；
Position of the erasing rubber in the screen area to be erased is obtained, and according to the position acquisition and the erasing rubber
The subregion of intersection；
The erasing rubber is obtained at a distance from the subregion of the intersection, it, will when the distance is less than preset distance threshold
The subregion of the intersection is clean labeled as being wiped free of；
When detecting that all subregions are marked as being wiped free of clean, the output screen area to be erased is wiped free of clean
Prompting message；
When detect the presence of be not labeled as being wiped free of the clean subregion when, execute erasing do not complete guidance operation；
When detect the presence of be not labeled as being wiped free of the clean subregion when, execute erasing do not complete guidance operation step
Suddenly, comprising:
It obtains and is not labeled as being wiped free of clean subregion in the screen area to be erased, and be not labeled as described in display
It is wiped free of clean subregion；
Remind the user to it is described be not labeled as being wiped free of clean subregion wiped again, and detect the user
Again the result wiped.
2. the method as described in claim 1, which is characterized in that obtain the subregion of the erasing rubber and the intersection away from
From by the subregion of the intersection labeled as being wiped free of clean step, wrapping when the distance is less than preset distance threshold
It includes:
The rubber is obtained respectively in the position of the screen area to be erased according to the erasing rubber and the subregion of the intersection
Skin is wiped and the center point coordinate of the subregion of the intersection；
According to the center point coordinate of the center point coordinate of the erasing rubber and the subregion of the intersection obtain the erasing rubber and
The distance of the subregion of the intersection；
The distance and preset distance threshold are compared, when the distance is less than the preset distance threshold, mark institute
The subregion for stating intersection is wiped free of completely.
3. the method as described in claim 1, which is characterized in that when detecting that it is clean that all subregions are marked as being wiped free of
When, export the step of screen area to be erased is wiped free of clean prompting message, comprising:
When receiving the message that erasing terminates, the flag state of all subregions is detected；
When all subregions all are marked as being wiped free of clean, the output screen area to be erased is wiped free of clean
Prompt information.
4. a kind of erasure detection device of screen area, which is characterized in that described device includes:
Sub-zone dividing module, for obtaining the shape of erasing rubber selected by user and dividing screen area to be erased according to the shape
Domain, to obtain multiple subregions；
Position acquisition module, for obtaining position of the erasing rubber in the screen area to be erased, and according to institute's rheme
Set the subregion for obtaining and intersecting with the erasing rubber；
Subregion mark module, for obtaining the erasing rubber at a distance from the subregion of the intersection, when the distance is less than
It is when preset distance threshold, the subregion of the intersection is clean labeled as being wiped free of；
Erasure completion module, for exporting the screen to be erased when detecting that all subregions are marked as being wiped free of clean
Curtain region is wiped free of clean prompting message；And
Wipe do not complete guiding module, for when detect the presence of be not labeled as being wiped free of the clean subregion when, hold
Row erasing does not complete guidance operation；
The erasing does not complete guiding module
Unmarked subregion display module is not labeled as being wiped free of clean son in the screen area to be erased for obtaining
Region, and be not labeled as being wiped free of clean subregion described in display；And
Again wipe module, for remind the user to it is described be not labeled as being wiped free of clean subregion wiped again
It removes, and detects the result that the user wipes again.
5. device as claimed in claim 4, which is characterized in that the subregion mark module includes:
Center point coordinate obtain module, for according to the erasing rubber and the subregion of the intersection in the screen area to be erased
The position in domain obtains the center point coordinate of the subregion of the erasing rubber and the intersection respectively；
Distance obtains module, for the center point coordinate according to the subregion of the center point coordinate and intersection of the erasing rubber
Obtain the distance of the subregion of the erasing rubber and the intersection；And
Comparison module, for comparing the distance and preset distance threshold, when the distance is less than the preset distance
When threshold value, the subregion of the intersection is marked to be wiped free of completely.
6. device as claimed in claim 4, which is characterized in that the erasure completion module includes:
Detection module, for detecting the flag state of all subregions when receiving the message that erasing terminates；And
Erasure completion cue module, for when all subregions all are marked as being wiped free of clean, output to be described wait wipe
Except screen area is wiped free of clean prompt information.
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| CN201638161U (en) * | 2009-10-29 | 2010-11-17 | 太瀚科技股份有限公司 | Electromagnetic whiteboard eraser |
| CN102566862A (en) * | 2010-12-21 | 2012-07-11 | 汉王科技股份有限公司 | Method and device for erasing geometric figures in interactive electronic whiteboard |
| CN104423869A (en) * | 2013-09-09 | 2015-03-18 | 中兴通讯股份有限公司 | Text erasing method and device |
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