c++调用7z解压缩封装代码

<h1 align="center"> bit7z </h1> <h3 align="center">A C++ static library offering a clean and simple interface to the 7-zip DLLs</h3> <p align="center"> <a href="https://github.com/rikyoz/bit7z/releases"><img src="https://img.shields.io/github/release/rikyoz/bit7z/all.svg?style=flat-square&logo=github&logoColor=white&colorB=blue&label=" alt="GitHub release"></a> <img src="https://img.shields.io/badge/-MSVC%202012+-red.svg?style=flat-square&logo=visual-studio-code&logoColor=white" alt="MSVC 2012 - 2019"> <img src="https://img.shields.io/badge/-x86,%20x86__64-orange.svg?style=flat-square&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAQAAAAAYLlVAAAC1UlEQVR42u3WA9AjWRSA0bu2bdu2bdssrm3btm3btm3bmX+Ms7rLTiW9NUmvcsL7XuELu6Ojoz5DWcc5nvKp2kBdPvesi21m1Pgr7OxjrfWtgw0VZZjKM9rjXfNHM+bWWzutGo2YSH/tNm+jgNe1XzdDR322V41Tox5D6K4qY0WRtVRnjyhysercH0VeVJ13o8hXqvNNFOlSna4oUlOd2r8moBPwoQfd6THfoLweauqp6aJ8wInmMmjujWAFtwMeNJup5cXsVnWYDyDtajQjmMp7QOoypxGMbMtyAe+Ztf5/JTaJAkM6mjRXrj0KpE9zdZIyAV8bLX5lBIPlszXAVlGXMwAr5fwskL4wdPzAfGUC5o9kJy+o+dCVloiwJNg2907wimddZrqcB9GtNQF3RXI+kI5yCcgADwF6yvfLNa0JWD7n5dWXAa4lbZwrR7UioKdhc76vdEB+KxzbioAncxpGr9IBM+XKDa0IuCanaWkS8BzguEhqrQg4P6e5mgasbV+7WCySvWlFwIU5zdYooMhytCbghpzGLh9gAodCWjFXXwDSV4aJH5inWcBLkbzTOMBa9rWvk92jH5BWqBvwjSHKBfQ3as4HlvoSFq2b+zcB6bXIj6pZABvnPKzPgPSJlxV/hkUH5v7SUPiv2LN5wKuRjO82wDdON6xFSwW8XvhdcGYkrzUPYJf4lcktZh4jxg8sViqA9SKZxDo2NH0km1ImgE2jDjuBLXK6FPX1N1fUYQnKBnCeGeN3jGdPfUC+P27TyO7GjN8xoUMpHZCecKZ97etE9+hD6vKQOz1jgMa6u90J+VO9V//OaXnzgE5Al+p0iyLfqM63UeRV1Xk/ilylOo9Gkc1U55AoMrz+qjJJ1OMQ1bgq6jOYr1Rh9EgFZtd+q0QjVtFeW0UzFvGJ9uhhrSjDSE7UX6tdaMIoz0R2cbvXfKE2UJevvOEe+5kuOjr+qb4H0/HV/SQ0YjEAAAAASUVORK5CYII=" alt="x86, x86_64"> <a href="https://github.com/rikyoz/bit7z/wiki"><img src="https://img.shields.io/badge/-docs-yellow.svg?style=flat-square&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAQAAAAAYLlVAAABCklEQVR42u3OAUQEARCF4SkKTgASgCIhCBRAQXHVSeEEgY6gAIggQiIACAISyAEkqigRiAKQAItEOlj1B1HU7nB2VvS+B4D3W/sYZZNzHnmlxQMHzNJhZWGCS346pdfi0c0u7/zulkr8fZM8WxaLffI902VxqOIbszhc41u0KAwAvoZFoQb4qhaFBr6UPotCHd+RxWEYzwv9Fok78qTMWyymeCNLizmLx2pGwhWDVg7GueG7lBOm6bQyMcQS62ywwiQ9JiJ/ARVGqLPDBctWLPY4zFyTY86454kva1YsEnwoIDJghoXPbUcHOKj9zwAFKEABClCAAhSgAAUoQAEKUIACSGhXYgpQgOsD2giqlbnGmc4AAAAASUVORK5CYII=" alt="Docs"></a> <a href="#donations"><img src="https://img.shields.io/badge/-donations-green.svg?style=flat-square&logo=data:image/png;base64,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&logoColor=white" alt="Donations"></a> <a href="https://ci.appveyor.com/project/rikyoz/bit7z"><img src="https://img.shields.io/appveyor/ci/rikyoz/bit7z.svg?style=flat-square&logo=appveyor&logoColor=white&label=" alt="Build status"></a> <a href="https://github.com/rikyoz/bit7z/blob/master/LICENSE"><img src="https://img.shields.io/badge/-GPL%20v2-lightgrey.svg?style=flat-square&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAQAAAAAYLlVAAAAvUlEQVR42u3Zt1EEURRE0Ye0gFwI4BWJoC0KGxftExk+RQATAN+nLpo1R0+v6NsJHPOLcO4vKkrPVexEcMFZN8AQ7UXwCBx0ART6VtiN4BCA1AHO+SnVAEg1AFINgFQDINUASDUAUg2AVAMg1QBINQBSDYBUAyDVAMhxAVfUdzkmYJ+7mj1xPQ7gjbWYJTmQbGsB77zy0mjPPQH9UwOKAQYYYIABBhhggAFzCTDAAAMMMGDS+v2a9V8Vzs1PH+dRolvEzoAoAAAAAElFTkSuQmCC" alt="License"></a> </p> <p align="center"> <a href="#supported-features">Supported Features</a> • <a href="#getting-started-library-usage">Getting Started</a> • <a href="#download">Download</a> • <a href="#requirements">Requirements</a> • <a href="#building-bit7z">Building</a> • <a href="#donations">Donations</a> • <a href="#license-gpl-v2">License</a> </p> ## Introduction **bit7z** is a C++ static library which allows to compress and extract many file archive formats, all through a clean, simple and entirely object-oriented interface to the dynamic libraries from the 7-zip project (<https://www.7-zip.org/>).<br/>It supports compression and extraction to and from the filesystem or the memory, reading of archives metadata, updating existing archives, creation of multi-volume archives, operation progress callbacks and many other functionalities. ## Supported Features + **Compression** using the following archive formats: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM. + **Extraction** of the following archive formats: 7z, AR, ARJ, BZIP2, CAB, CHM, CPIO, CramFS, DEB, DMG, EXT, FAT, GPT, GZIP, HFS, HXS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RAR5, RPM, SquashFS, TAR, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR, XZ, Z and ZIP. + **Reading metadata** of archives and of their content (from v3.x). + **Testing** archives for errors (from v3.x). + **Updating** existing file archives (from v3.1.x). + **Compression and extraction _to and from_ memory** (from v2.x &mdash; compression to memory is supported only for BZIP2, GZIP, XZ and TAR formats). + **Compression and extraction _to and from_ C++ standard streams** (from v3.1.x). + Compression using a **custom directory system** in the output archives (from v3.x) + **Selective extraction** of only specified files/folders **using wildcards** (from v3.x) and **regexes** (from v3.1.x). + Creation of **encrypted archives** (strong AES-256 encryption &mdash; only for 7z and ZIP formats). + **Archive header encryption** (only for 7z format). + Choice of the **compression level** (from none to ultra, not all supported by every output archive format). + Choice of the **compression method** (from v3.1.x &mdash; see the [wiki](https://github.com/rikyoz/bit7z/wiki/Advanced-Usage#compression-methods) for the supported methods). + Choice of the compression **dictionary size** (from v3.1.x). + **Automatic input archive format detection** (from v3.1.x). + **Solid archives** (only for 7z). + **Multi-volume archives** (from v2.1.x). + **Operation callbacks**, through which it is possible to obtain real time information about the ongoing extraction or compression operation (from v2.1.x). Please note that the presence or not of some of the above features depends on the particular .dll used along with bit7z. For example, the 7z.dll should support all these features, while 7za.dll should support only the 7z file format and the 7zxa.dll can only extract 7z files. For more information about the 7-zip DLLs, please see this [wiki page](https://github.com/rikyoz/bit7z/wiki/7z-DLLs). In the end, some other features (e.g. _automatic format detection_ and _selective extraction using regexes_) are disabled by default and macros defines must be used during compilation to have them available ([wiki](https://github.com/rikyoz/bit7z/wiki/Building-the-library)). ## Getting Started (Library Usage) Below are a few examples that show how to use some of the main features of bit7z: ### Extracting files from an archive ```cpp #include "bitextractor.hpp" using namespace bit7z; try { Bit7zLibrary lib{ L"7za.dll" }; BitExtractor extractor{ lib, BitFormat::SevenZip }; extractor.extract( L"path/to/archive.7z", L"out/dir/" ); //extracting a simple archive extractor.extractMatching( L"path/to/arc.7z", L"file.pdf", L"out/dir/" ); //extracting a specific file //extracting the first file of an archive to a buffer std::vector< byte_t > buffer;