Method for joining files and method for splitting files

Abstract

The invention relates to a technology of a file system for a computer, in particular to a method for joining files and a method for splitting files. The method for joining the files comprises the following steps of: ergodically reading a source file to form source file mark information, and storing the source file mark information into a tree structure; creating a target file and a corresponding memory mapping file; taking byte numbers occupied by storing the content of the tree structure and the content of the tree structure as file header information, and sequentially writing the file header information into a start position of the memory mapping file; writing the information into the memory mapping file according to the content of the source file of the tree structure, wherein the written position starts after the content of the tree structure is stored; and closing the memory mapping file after the write operation is ended to form a target files, namely the joined files. The invention also provides a file splitting method for splitting the joined target files. According to the methods, the joining speed or the splitting speed of the files is improved, the certain source file can be quickly searched and split in the joined target files, and users can greatly conveniently operate the files.

Description

technical field [0001] The invention relates to computer file system technology, in particular to a file merging method and a decomposition method. Background technique [0002] With the advent of the information age, computers have been widely used in all aspects of life, and the main storage methods of user information in computers are files and folders. A file in a computer is a collection of information stored on a computer with a computer hard disk as a carrier. A file can be a text document, a picture, a program, and so on. Files usually have a three-letter file extension to indicate the file type. The folders in the computer are used to help people manage computer files. Each folder corresponds to a piece of disk space, and it provides an address pointing to the corresponding space. It has no extension, so it does not need an extension to identify it. Folders generally adopt a multi-level structure (such as a tree structure). Folders can contain not only files, but ...

AI Technical Summary

Problems solved by technology

[0011] Third, file decomposition can only be decomposed as a whole, and it is impossible to quickly decompose one of the source files or directly use one of the source files without decomposing the target file, that is, directly analyze the target file and directly use a source in the target file file memory data

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