CN105677438A - Method for automatically calculating calculation formula in file through compiler - Google Patents
Method for automatically calculating calculation formula in file through compiler Download PDFInfo
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- CN105677438A CN105677438A CN201610008596.9A CN201610008596A CN105677438A CN 105677438 A CN105677438 A CN 105677438A CN 201610008596 A CN201610008596 A CN 201610008596A CN 105677438 A CN105677438 A CN 105677438A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/40—Transformation of program code
- G06F8/41—Compilation
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Abstract
The invention discloses a method for automatically calculating a calculation formula in a file through a compiler. By means of the method, the calculation formula can be conveniently read from the file and compiled by developers, and the difficulty in compiling the calculation formula in the file is lowered for the developers. The calculation formula in the file is read and stored in an internal storage, the calculation formula is reduced into return statements through a program, and the calculation formula is automatically calculated through the compiler carried by a Visual Studio. The method helps the program developers, the formula calculating task is handed over to the compiler of the program to be executed, workloads on the developers are reduced, and the work efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of method utilizing compiler that computing formula in file is carried out automatization's calculating, belong to field of computer technology.
Background technology
MicrosoftVisualStudio (abbreviation VS) is the development kit series of products of MS. VS is a basic complete developing instrument collection, and it includes most of instrument required in whole software life-cycle, such as UML instrument, code administration tool, IDE (IDE) etc. The object code write is applicable to all platforms that Microsoft supports, including MicrosoftWindows, WindowsMobile, WindowsCE .NETFramework .NETCompactFramework and MicrosoftSilverlight and WindowsPhone. VisualStudio is the IDE of current most popular windows platform application.
1997, Microsoft issued VisualStudio97. Include towards the VisualBasic5.0 of Windows application, visual c++ 5.0, VisualJ++ towards Java exploitation and the VisualFoxPro towards database development, also includes the VisualInterDev created required for DHTML (DynamicHTML). Wherein, VisualBasic and VisualFoxPro uses independent development environment, and other development language uses unified development environment.
Visual c++ VisualStudio and the VisualStudio.Net2002 that we know just, in 2003, the C++ compiler of band, is developed by Microsoft Corporation. In VisualStudio6.0, the conservative criticism because compiler has too many place can not match with the C++ standard occurred later. The compatibility of standardization C++ is only had 83.43% by VC++6.0, but it is as joining of C++ compiler great master StanleyLippman and many C++ community intelligents, visual c++ compiler has had become as a highly developed reliable C++ compiler, the evaluation and test of Dr.Dobb ' sJournal shows that the visual c++ 7.1 compatibility to standard C++ is up to 98.22%, compiler compatible best before once becoming CBX.
C++ is a kind of Object-Oriented Programming Language of exploitation on the basis of C language, is widely used. C++ supports multiple programming paradigm--OOP, generic programming and proceduring programming.Up-to-date official standard C++ announced on August 18th, 2014. Its programming field is many wide, is usually used in the applications such as system development, engine exploitation, is one of the most powerful programming language of being benefited from by numerous programmers up to now, support class: the characteristics such as class, encapsulation, heavy duty.
The method of computing formula in existing extraction calculation document, it is intended to the relative importance value according to formula, the program that the factor design such as associativity is complicated, computing formula is split, progressively solves, finally obtain result, its design difficulty is relatively big, and work efficiency is not high. And the present invention can solve problem above well.
Summary of the invention
It is an object of the invention to solve the defect of above-mentioned prior art, provide a kind of method of computing formula in automatic compiling file, the method is by reading the computing formula in file, store it in internal memory, after computing formula being reverted to return statement by program, finally utilize the VisualStudio compiler carried that computing formula is carried out automatization's calculating.
This invention address that its technical problem is adopted the technical scheme that: a kind of method utilizing compiler that computing formula in file is carried out automatization's calculating, the method comprises the steps:
Step 1: analyze file destination;
Step 1-1: progressive scan file destination;
Step 1-2: judge whether current line has the target computing formula of setting;
Step 1-2-1: be judged as YES, writes another file one by one by each element of this computing formula, and inserts newline in the end;
Step 1-2-2: be judged as NO, skips this row, the next effectively row of scanning;
Step 1-3: judge whether to have arrived the ending of file destination;
Step 1-3-1: be judged as YES, carries out next step and reads in work;
Step 1-3-2: be judged as NO, jumps to step 1-1, continues to analyze;
Step 2: computing formula is read in internal memory;
Step 2-1: first write a marker character in internal memory;
Step 2-2: the file that progressive scan step 1 generates;
Step 2-3: each element of each row formula is read in the middle of internal memory one by one;
Step 2-4: after reading in each formula, again writes marker character in internal memory;
Step 2-5: judge whether to have arrived the end of file;
Step 2-5-1: be judged as YES, then stop reading in, carry out next step evaluation work;
Step 2-5-2: be judged as NO, jumps to step 2-2, continues executing with;
Step 3: the internal memory in step 2 is calculated;
Step 3-1: start to read internal memory from specifying position;
Step 3-2: judge whether current first character is marker character;
Step 3-2-1: be judged as YES, skips this character, then branches to step 3-2;
Step 3-2-2 is judged as NO, and reads this character;
Step 3-3: after adding the byte of reading to return statement in order;
Step 3-4: repeat the above steps, until after adding all characters of next marker character to return statement;
Step 3-5: perform return statement, by result record in another file, inserts newline, empties the content after return statement;
Step 3-6: judge whether to arrive the end of this region of memory;
Step 3-6-1: be judged as YES, shuts down procedure;
Step 3-6-2: be judged as NO, jumps to step 3-2;
Beneficial effect:
1, the compiler that exploitation environment of the present invention carries goes the computing formula in calculation document, saves the calculating time.
2, the present invention utilizes Automatic Program to perform substantial amounts of computing formula that may be present in file, instead of traditional manual calculations, improves work efficiency.
3, the present invention can save the time of a large amount of computing formula in programmer's manual calculations file, effectively alleviate the operating pressure of application developer, by identifying the computing formula in file, automatization is calculated processing, instead of traditional manual calculations, be greatly improved the work efficiency of application developer.
Accompanying drawing explanation
Fig. 1 is that the present invention reads the method flow diagram of formula in file.
Fig. 2 is the method flow diagram that formula is read in internal memory by the present invention.
Fig. 3 is the method flow diagram that the present invention processes computing formula.
Detailed description of the invention
Below in conjunction with Figure of description, the invention is described in further detail.
Embodiment one
The invention provides a kind of method utilizing compiler that computing formula in file is carried out automatization's calculating, the method utilizes the method that the compiler that VisualStudio development environment carries goes substantial amounts of computing formula potential in automatization's calculation document, by the computing formula existed in Study document, read in internal memory, after utilizing program that computing formula is reverted to return statement, compiler is allowed to go to perform calculating task, thus improve the work efficiency of developer, alleviating their workload, its step is for including:
Step 1: obtain the computing formula of file destination, as it is shown in figure 1, concrete technical scheme is as follows:
Step 1-1: progressive scan file destination;
Step 1-2: judge whether current line has the target computing formula of setting;
Step 1-2-1: be judged as YES, writes another file one by one by each element of this computing formula, and inserts newline in the end;
Step 1-2-2: be judged as NO, skips this row, the next effectively row of scanning.
Step 1-3: judge whether to have arrived the ending of file destination;
Step 1-3-1: be judged as YES, carries out next step and reads in work;
Step 1-3-2: be judged as NO, jumps to step 1-1, continues to analyze;
Step 2: computing formula is read in internal memory, as in figure 2 it is shown, concrete technical scheme is as follows:
Step 2-1: first write a marker character in internal memory;
Step 2-2: the file that progressive scan step 1 generates;
Step 2-3: each element of each row formula is read in the middle of internal memory one by one;
Step 2-3-1: numerical value element directly reads in the middle of internal memory;
Step 2-3-2: symbol element utilizes program to be converted into the discernible symbol of program, is read in the middle of internal memory according still further to former sequence;
Step 2-4: after reading in each formula, again writes marker character in internal memory;
Step 2-5: judge whether to have arrived the end of file;
Step 2-5-1: be judged as YES, then stop reading in, carry out next step evaluation work;
Step 2-5-2: be judged as NO, jumps to step 2-2, continues executing with;
Step 3: the internal memory in step 2 is calculated, as it is shown on figure 3, concrete technical scheme is as follows:
Step 3-1: start to read internal memory from specifying position;
Step 3-2: judge whether current first character is marker character;
Step 3-2-1: be judged as YES, skips this character, then branches to step 3-2;
Step 3-2-2 is judged as NO, and reads this character;
Step 3-3: after adding the byte of reading to return statement in order;
Step 3-4: repeat the above steps, until after adding all characters of next marker character to return statement;
Step 3-5: perform return statement, by result record in another file, inserts newline, empties the content after return statement;
Step 3-6: judge whether to arrive the end of this region of memory;
Step 3-6-1: be judged as YES, shuts down procedure;
Step 3-6-2: be judged as NO, jumps to step 3-2;
Embodiment two
Concrete application scenarios: the present invention considers in the middle of some files, there may be many computing formula to exist, these formula need people manually to go to calculate its value, if the enormous amount of formula, that manual calculations would become impractical, and extremely inefficient, this situation brings great trouble to developer. The present invention is exactly in this case, uses the compiler that VisualStudio development environment carries that the formula in file is carried out automatization's calculating. First, computing formula in file being concentrated extracts in the middle of another file, then, by in the middle of the computing formula read-in programme internal memory that extracts, then, formula is progressively reverted to after return statement, finally, utilize the VisualStudio compiler carried that the computing formula after return statement is calculated. So, eliminate a large amount of manual operation, alleviate the work load of application developer, improve work efficiency.
Claims (2)
1. one kind utilizes the method that computing formula in file is carried out automatization's calculating by compiler, it is characterised in that described method comprises the steps of:
Step 1: analyze file destination;
Step 1-1: progressive scan file destination;
Step 1-2: judge whether current line has the target computing formula of setting;
Step 1-2-1: be judged as YES, writes another file one by one by each element of this computing formula, and inserts newline in the end;
Step 1-2-2: be judged as NO, skips this row, the next effectively row of scanning;
Step 1-3: judge whether to have arrived the ending of file destination;
Step 1-3-1: be judged as YES, carries out next step and reads in work;
Step 1-3-2: be judged as NO, jumps to step 1-1, continues to analyze;
Step 2: computing formula is read in internal memory;
Step 2-1: first write a marker character in internal memory;
Step 2-2: the file that progressive scan step 1 generates;
Step 2-3: each element of each row formula is read in the middle of internal memory one by one;
Step 2-3-1: numerical value element directly reads in the middle of internal memory;
Step 2-3-2: symbol element utilizes program to be converted into the discernible symbol of program, is read in the middle of internal memory according still further to former sequence;
Step 2-4: after reading in each formula, again writes marker character in internal memory;
Step 2-5: judge whether to have arrived the end of file;
Step 2-5-1: be judged as YES, then stop reading in, carry out next step evaluation work;
Step 2-5-2: be judged as NO, jumps to step 2-2, continues executing with;
Step 3: the internal memory in step 2 is calculated;
Step 3-1: start to read internal memory from specifying position;
Step 3-2: judge whether current first character is marker character;
Step 3-2-1: be judged as YES, skips this character, then branches to step 3-2;
Step 3-2-2 is judged as NO, and reads this character;
Step 3-3: after adding the byte of reading to return statement in order;
Step 3-4: repeat the above steps, until after adding all characters of next marker character to return statement;
Step 3-5: perform return statement, by result record in another file, inserts newline, empties the content after return statement;
Step 3-6: judge whether to arrive the end of this region of memory;
Step 3-6-1: be judged as YES, shuts down procedure;
Step 3-6-2: be judged as NO, jumps to step 3-2.
2. a kind of method utilizing compiler that computing formula in file is carried out automatization's calculating according to claim 1, it is characterized in that, described method is by reading the computing formula in file, store it in internal memory, after computing formula being reverted to return statement by program, finally utilize the VisualStudio compiler carried that computing formula is carried out automatization's calculating.
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Cited By (1)
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| CN108614680A (en) * | 2016-12-14 | 2018-10-02 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of automatic generation method and system of information inquiring command program |
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Application publication date: 20160615 |