CN111611772B - Incremental sequence generation method and device - Google Patents
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Abstract
The invention discloses a method and a device for generating an incremental sequence, wherein the method comprises the following steps: converting the current sequence into a character array to obtain a target character array; acquiring the last character of the target character array, converting the last character into an ASCII hexadecimal value, and obtaining a conversion code corresponding to the last character; adding a preset increment to the conversion code, judging whether the added result is in a preset interval, if so, determining the character corresponding to the added result as an increased character value, and obtaining a target sequence; if the added result is in the special character value interval, performing cyclic increment processing on the conversion code until the added result is in the preset interval, and obtaining a target sequence; if the added result is a preset code value, the conversion code is determined to be zero, and the previous character corresponding to the last character is coded to obtain a target sequence corresponding to the current sequence. The invention realizes the purposes of logic simplification and expansibility improvement.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a method and apparatus for generating an increment sequence.
Background
Related business codes are needed in many fields at present, such as a bank running water bill, a supermarket running water bill and the like. In the system design process, unique codes are realized according to service requirements, the specific format is 'functional codes + year and month + sequence', the sequence needs to provide the combination quantity as much as possible with the least number of bits to meet the service requirements, and the value interval of the number is only 0-9, so that the requirements can not be met far.
The combination of numbers and letters is generally used in the industry to expand the value range, when the number of the limiting digit reaches 9, the last digit is replaced by the letter, the number is increased again by 0, and when the length of the letter is the length of the limiting digit and the letters are Z, the limiting length is increased by 1, so that the expected result is obtained. However, the implementation mode has the problems of poor expansion flexibility and low multiplexing degree, so that the code implementation of sequence generation generally has the problems of complex logic, poor readability and poor expandability.
Disclosure of Invention
Aiming at the problems, the invention provides a method and a device for generating an incremental sequence, which realize the purposes of simplifying logic and improving expansibility.
In order to achieve the above object, the present invention provides the following technical solutions:
a method of incremental sequence generation, the method comprising:
converting the current sequence into a character array to obtain a target character array;
acquiring the last character of the target character array, converting the last character into an ASCII code hexadecimal value, and obtaining a conversion code corresponding to the last character;
adding a preset increment to the conversion code, judging whether the added result is in a preset interval, if so, determining the character corresponding to the added result as an increased character value, and obtaining a target sequence;
if the added result is in a special character value interval, performing cyclic increment processing on the conversion code until the added result is in the preset interval, and obtaining a target sequence;
and if the added result is a preset code value, determining the conversion code as zero, and carrying out coding processing on the character of the previous bit corresponding to the character of the last bit to obtain a target sequence corresponding to the current sequence.
Optionally, the method further comprises:
and responding to the acquisition of the target character array, and acquiring the characters of the target character array according to the sequence of the target character array from back to front.
Optionally, adding a preset increment to the conversion code, judging whether the added result is within a preset interval, if so, determining a character corresponding to the added result as an incremented character value, and obtaining a target sequence, including:
adding an increment preset increment to the conversion code to obtain an added result corresponding to the conversion code, wherein the preset increment is 0x1, and the 0x1 represents a hexadecimal writing method of 1;
judging whether the added result is in a preset interval, if so, determining the character corresponding to the added result as an incremental character value, wherein the preset interval comprises an interval of 0 to 9 and an interval of A to Z;
and generating a target sequence according to the character value after the increment.
Optionally, the special character value interval is an interval corresponding to 0x3A to 0x40 in ASCII coding; the preset code value is 0x5B, wherein the 0x5B represents an ASCII code value of a character next to Z.
Optionally, the method further comprises:
and determining an exclusion character group, and performing exclusion processing on characters in the exclusion character group in the obtained target sequence according to the application scene requirement, so that the obtained target sequence meets the application scene requirement.
An incremental sequence generating apparatus, the apparatus comprising:
the first conversion unit is used for converting the current sequence into a character array to obtain a target character array;
the second conversion unit is used for obtaining the last character of the target character array, converting the last character into an ASCII code hexadecimal value and obtaining a conversion code corresponding to the last character;
the first processing unit is used for adding a preset increment to the conversion code, judging whether the added result is in a preset interval, if so, determining the character corresponding to the added result as an increased character value, and obtaining a target sequence;
the second processing unit is used for performing cyclic increment processing on the conversion codes if the added result is in a special character value interval until the added result is in the preset interval, so as to obtain a target sequence;
and the third processing unit is used for determining the conversion code to be zero if the added result is a preset code value, and performing coding processing on the previous character corresponding to the last character to obtain a target sequence corresponding to the current sequence.
Optionally, the apparatus further comprises:
and the acquisition unit is used for responding to the acquisition of the target character array and acquiring the characters of the target character array according to the sequence of the target character array from back to front.
Optionally, the first processing unit includes:
the increment subunit is used for adding preset increment to the conversion code to obtain an added result corresponding to the conversion code, wherein the preset increment is 0x1, and the 0x1 represents a hexadecimal writing method of 1;
a judging subunit, configured to judge whether the added result is within a preset interval, and if yes, determine a character corresponding to the added result as an incremented character value, where the preset interval includes an interval from 0 to 9 and an interval from a to Z;
and the generating subunit is used for generating a target sequence according to the character value after the increment.
Optionally, the special character value interval is an interval corresponding to 0x3A to 0x40 in ASCII coding; the preset code value is 0x5B, wherein the 0x5B represents an ASCII code value of a character next to Z.
Optionally, the apparatus further comprises:
and the excluded character determining unit is used for determining an excluded character group, and performing excluded processing on characters in the excluded character group in the obtained target sequence according to the application scene requirement so that the obtained target sequence meets the application scene requirement.
Compared with the prior art, the invention provides a method and a device for generating an incremental sequence, which convert the current sequence into a character array, acquire the last character of the character array and encode the character array, and because the incremental mode of encoding utilizes the encoded ASCII code, when the value interval changes, only the value interval of the ASCII code is concerned, whether the encoding is numbers, capital letters or lowercase letters and the like can be ignored, and when the value interval expands, only the position of the ASCII code interval is judged, and the ASCII code interval is increased, so that the incremental mode is simpler and the expansibility is stronger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an incremental sequence generation method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an increment sequence generating device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms first and second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to the listed steps or elements but may include steps or elements not expressly listed.
In an embodiment of the present invention, there is provided a method for generating an increment sequence, referring to fig. 1, the method includes:
s101, converting a current sequence into a character array to obtain a target character array;
s102, obtaining the last character of the target character array, converting the last character into an ASCII code hexadecimal value, and obtaining a conversion code corresponding to the last character.
ASCII coding is a us standard code for information exchange, a single byte coding system now commonly used, using established 7-bit or 8-bit binary combinations to represent 128 or 256 possible characters. ASCII codes may be represented in binary, octal, decimal, hexadecimal, or hexadecimal.
And converting the sequence into a character array to obtain a target character array, wherein the target character array represents the converted character array, acquires the last character of the array, and converts the last character into an ASCII code hexadecimal value.
S103, adding a preset increment to the conversion code, judging whether the added result is in a preset interval, and if so, executing S104;
s104, determining the character corresponding to the added result as an increased character value, and obtaining a target sequence;
s105, if the added result is in a special character value interval, performing cyclic increment processing on the conversion code until the added result is in a preset interval, and obtaining a target sequence;
and S106, if the added result is a preset code value, determining the conversion code as zero, and performing coding processing on the previous character corresponding to the last character to obtain a target sequence corresponding to the current sequence.
Then, performing corresponding increment processing on the converted last bit character, wherein the increment is 0x1, namely a 16-system writing method with 1, and the logic processing of the added result is as follows:
if the result is in the sequence value interval, the character corresponding to the added result is the character value after increment, and the processing is finished, wherein the sequence value interval is as follows: [0-9] and [ A-Z ] are in the range of [0x30-0x39] and [0x41-0x5A ] of the ASCII code 16 system representation.
If the result is within the special character value interval, ASCII [0x3A-0x40]. The increment of 0x1 is circularly increased until the wanted character is obtained in the sequence value interval, and the processing is finished;
if the result is 0x5B (the ASCII code value of the next character Z), initializing the current character to 0, processing the previous character, and finally obtaining the increment result of the current sequence.
The invention provides an incremental sequence generating method, which converts the current sequence into a character array, acquires the last character of the character array and encodes the character array, and because the encoded ASCII code is utilized in the incremental mode of encoding, when the value interval changes, only the ASCII code value interval is concerned, whether the encoding is numbers, capital letters or lowercase letters and the like can be ignored, and when the value interval expands, only the position of the ASCII code interval is judged, and the ASCII code interval is increased, so that the incremental mode is simpler and the expansibility is stronger.
The methods provided by the prior art and the present invention are compared below with the assumption that the number of encoding bits is 4.
When the limit digits reach all 9, the last digit is replaced with the letter, the number is incremented again at 0, when the letter length is the limit digits length and the letters are all Z, the limit length is increased by 1, the expected result (limit length 4 digits, starting from 1):
0001...9999...A000...A001...A999...B000..........Z999...ZA00...ZZ99...ZZA0...ZZZ
the prior art is to divide a sequence into two parts, namely a character string and a number string, such as: a001 =a+001;
adding 1 to the digital string, and judging whether the digital string is carried, if so: 001+1=002;
if no carry is carried, the final result is 002;
if the carry exists, adding 1 to the first character of the character string, and judging whether the character has the carry or not:
if the carry is carried, the final result is that the character+the rest characters of the character string+the rest digits are complemented by 0;
if the carry is available, the next character of the character string is acquired to carry out the steps.
Assuming that the code is A0C9, obtaining a character code A and a digital code B in the code, adding 1 to the digital code B to obtain C, judging whether C is larger than the maximum value Max with the same digit of the digital code B (for example, the maximum value 99 with the same digit of B is 57), and if not, increasing the value to be a+C combination; if the character code is larger than the first threshold value, the character code A is processed. Judging whether A is empty, if so, assigning A as 'A', and supplementing the rest digits as '0', wherein the result is 'A000';
if the result is not null, acquiring from the back to the front, firstly acquiring the last bit of the character code, converting the last bit into ASCII code, then adding 1, judging whether the result is greater than 90 (namely the last bit of ASCII of Z), and if so, judging that the code bit of A is 'Z' + 'A' + the residual bit number '0'; if not, then result+number of bits remaining '0'.
The existing scheme realizes the generation of a unique increment sequence of numbers and letters, mainly realizes the increment of numbers and letters separately, wherein the number increment is the direct addition of 1 to the numbers, and the letter increment is the conversion of ASCII code values by the letters, then the increment of 1 is added, and then the letters are converted into letters after logic processing. The implementation disadvantage is therefore the poor flexibility of expansion and the low degree of multiplexing. If the coding value interval 1-9A-Z cannot be met, and the coding value interval needs to be expanded to 1-9A-Za-Z, the existing solution is completely reconsidered and is difficult to expand on the basis.
The incremental sequence generation method provided by the invention is to convert the sequence into a coding array by assuming that the coding bit number is 4, and acquire codes from back to front. Firstly, acquiring the last bit of code, converting the acquired code into ASCII code, then adding increment 0x1 (hexadecimal writing method of 1), judging whether the added result is in the value interval of 0-9 and A-Z, if so, ending; if not, then the increment of 0x1 is continued for a maximum of 43 cycles (because of ASCII, 0 vs. Z, 43). It is determined whether the last derived code value is equal to 0x5B (the latter bit of Z) and if not, the code is an incremented value. If the current code is equal to the current code, setting the current code to be 0, and realizing carry, namely acquiring the previous bit of the current code to add increment, wherein the rule is the same as the above.
Because the incremental mode of the code utilizes the coded ASCII code, when the value interval changes, only the ASCII code value interval is concerned, whether the code is a number or a capital letter or a lowercase letter can be ignored, and the logic is simpler and expandable.
Since the letter O, I and the numbers 0, 1 are prone to ambiguity and the code is in many cases exported into an excel file, the letter E is often used in an excel table to represent scientific counts. The letter I, O, E is therefore excluded from the sequence. In view of the above, it is possible to exclude letters or numbers when writing sequences, we provide a non-valued character interface that is more flexible and scalable.
Correspondingly, in another embodiment of the present invention, there is also provided an incremental sequence generating apparatus, referring to fig. 2, including:
a first conversion unit 201, configured to convert a current sequence into a character array, and obtain a target character array;
a second conversion unit 202, configured to obtain a last-bit character of the target character array, and convert the last-bit character into an ASCII hexadecimal value, so as to obtain a conversion code corresponding to the last-bit character;
a first processing unit 203, configured to add a preset increment to the conversion code, determine whether the added result is within a preset interval, and if so, determine a character corresponding to the added result as an incremented character value, so as to obtain a target sequence;
a second processing unit 204, configured to perform cyclic increment processing on the transform code if the added result is in a special character value interval, until the added result is in the preset interval, so as to obtain a target sequence;
and the third processing unit 205 is configured to determine the transform code to be zero if the added result is a preset code value, and perform coding processing on a previous bit character corresponding to the last bit character to obtain a target sequence corresponding to the current sequence.
On the basis of the above embodiment, the device further includes:
and the acquisition unit is used for responding to the acquisition of the target character array and acquiring the characters of the target character array according to the sequence of the target character array from back to front.
On the basis of the above embodiment, the first processing unit includes:
the increment subunit is used for adding preset increment to the conversion code to obtain an added result corresponding to the conversion code, wherein the preset increment is 0x1, and the 0x1 represents a hexadecimal writing method of 1;
a judging subunit, configured to judge whether the added result is within a preset interval, and if yes, determine a character corresponding to the added result as an incremented character value, where the preset interval includes an interval from 0 to 9 and an interval from a to Z;
and the generating subunit is used for generating a target sequence according to the character value after the increment.
On the basis of the above embodiment, the special character value interval is an interval corresponding to 0x3A to 0x40 in ASCII encoding; the preset code value is 0x5B, wherein the 0x5B represents an ASCII code value of a character next to Z.
On the basis of the above embodiment, the device further includes:
and the excluded character determining unit is used for determining an excluded character group, and performing excluded processing on characters in the excluded character group in the obtained target sequence according to the application scene requirement so that the obtained target sequence meets the application scene requirement.
Compared with the prior art, the invention provides an incremental sequence generating device, which converts the current sequence into the character array in a first conversion unit and a second conversion unit, acquires the last character of the character array to encode the character array, and performs incremental processing through a processing unit.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of generating an incremental sequence, the method comprising:
converting the current sequence into a character array to obtain a target character array;
acquiring the last character of the target character array, converting the last character into an ASCII code hexadecimal value, and obtaining a conversion code corresponding to the last character;
adding a preset increment to the conversion code, judging whether the added result is in a preset interval, if so, determining the character corresponding to the added result as an increased character value, and obtaining a target sequence;
if the added result is in a special character value interval, performing cyclic increment processing on the conversion code until the added result is in the preset interval, and obtaining a target sequence;
and if the added result is a preset code value, determining the conversion code as zero, and carrying out coding processing on the character of the previous bit corresponding to the character of the last bit to obtain a target sequence corresponding to the current sequence.
2. The method according to claim 1, characterized in that the method further comprises:
and responding to the acquisition of the target character array, and acquiring the characters of the target character array according to the sequence of the target character array from back to front.
3. The method according to claim 2, wherein adding a preset increment to the transform code, determining whether the added result is within a preset interval, if so, determining a character corresponding to the added result as an incremented character value, and obtaining a target sequence, includes:
adding an increment preset increment to the conversion code to obtain an added result corresponding to the conversion code, wherein the preset increment is 0x1, and the 0x1 represents a hexadecimal writing method of 1;
judging whether the added result is in a preset interval, if so, determining the character corresponding to the added result as an incremental character value, wherein the preset interval comprises an interval of 0 to 9 and an interval of A to Z;
and generating a target sequence according to the character value after the increment.
4. A method according to claim 3, wherein the special character value interval is an interval corresponding to 0x3A to 0x40 in ASCII encoding; the preset code value is 0x5B, wherein the 0x5B represents an ASCII code value of a character next to Z.
5. The method according to claim 1, characterized in that the method further comprises:
and determining an exclusion character group, and performing exclusion processing on characters in the exclusion character group in the obtained target sequence according to the application scene requirement, so that the obtained target sequence meets the application scene requirement.
6. An increment sequence generation apparatus, comprising:
the first conversion unit is used for converting the current sequence into a character array to obtain a target character array;
the second conversion unit is used for obtaining the last character of the target character array, converting the last character into an ASCII code hexadecimal value and obtaining a conversion code corresponding to the last character;
the first processing unit is used for adding a preset increment to the conversion code, judging whether the added result is in a preset interval, if so, determining the character corresponding to the added result as an increased character value, and obtaining a target sequence;
the second processing unit is used for performing cyclic increment processing on the conversion codes if the added result is in a special character value interval until the added result is in the preset interval, so as to obtain a target sequence;
and the third processing unit is used for determining the conversion code to be zero if the added result is a preset code value, and performing coding processing on the previous character corresponding to the last character to obtain a target sequence corresponding to the current sequence.
7. The apparatus of claim 6, wherein the apparatus further comprises:
and the acquisition unit is used for responding to the acquisition of the target character array and acquiring the characters of the target character array according to the sequence of the target character array from back to front.
8. The apparatus of claim 7, wherein the first processing unit comprises:
the increment subunit is used for adding preset increment to the conversion code to obtain an added result corresponding to the conversion code, wherein the preset increment is 0x1, and the 0x1 represents a hexadecimal writing method of 1;
a judging subunit, configured to judge whether the added result is within a preset interval, and if yes, determine a character corresponding to the added result as an incremented character value, where the preset interval includes an interval from 0 to 9 and an interval from a to Z;
and the generating subunit is used for generating a target sequence according to the character value after the increment.
9. The apparatus of claim 8, wherein the special character value interval is an interval corresponding to 0x3A to 0x40 in ASCII encoding; the preset code value is 0x5B, wherein the 0x5B represents an ASCII code value of a character next to Z.
10. The apparatus of claim 6, wherein the apparatus further comprises:
and the excluded character determining unit is used for determining an excluded character group, and performing excluded processing on characters in the excluded character group in the obtained target sequence according to the application scene requirement so that the obtained target sequence meets the application scene requirement.
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