When it comes to file compression, everyone can say a few. However, most of the friends who use the compression software often only perform the simplest compression and decompression operations, and often do not explore other aspects of the compression software. In fact, as long as you understand, you will find the power of these compression software. Below, Xiaobian will use WinRAR this software as an example to introduce some of its use skills. WinRAR features include powerful compression, multi-volume operation, encryption technology, self-release modules, and easy backup. Different from many compression tools, WinRAR follows the management method of DOS programs. When you compress files, you don't need to create a compressed package beforehand and add files to it. Instead, you can create it directly. In addition, add a software to an existing one. The compression package is also very easy and gives you a very convenient feel. WinRAR also uses a unique multimedia compression algorithm and a compact compression method, which specifically increases its compression ratio. Its default compression format is RAR, which is 10% higher than the ZIP format. 30%, it also supports ZIP, ARJ, CAB, LZH, ACE, TAR, GZ, UUE, BZ2, JAR type compressed files. WinRAR is a very practical compression tool. Let's take a look at the latest 2.9 Chinese version as an example. After installation and setup, the program pops up a setup window. In order to achieve its excellent performance, we need to set the software before using it. In the "WinRAR file association" item in the window, the zip package type setting associated with the WinRAR created file is provided. You can choose as needed. In the “Interface Settings” item, select “Place WinRAR on the desktop” and “Place WinRAR in the Start Menu” and “Create WinRAR Program Group” option. And in the following "Enclosure Integration Settings" item, set the system mouse right-click menu to add WinRAR command, it is recommended to use all the options, then click “ OK & rdquo; complete the settings. Basic use 1. Compressed files Since WinRAR is a compression software, I will first talk about how to use it to compress files. Since WinRAR supports the right mouse button shortcut menu function, in general, when we compress files, just right click on the file or folder to be compressed in the explorer. In the shortcut menu that pops up, WinRAR provides “Add to the archive file (A). . . And “ added to ×××.rar” two compression methods. Select the “Add to ×××.rar” command, WinRAR can quickly create a RAR archive in the current directory. If you want to make some complicated settings on the compressed file (such as volume compression, encrypt the compressed package, backup the compressed file, add comments to the compressed file, etc.), we can select "Add to archive file (A) in the right-click menu. . . . ” Command, in the pop-up "Archive file name and parameters" dialog box, WinRAR provides a total of "regular, advanced, file, backup, comments" five options. Enter the name of a compressed file in the "General" tab item, the default extension is “*.rar”, and select the archive file type. In this program, RAR and ZIP are provided. The default is RAR. At the same time, you can set the "Update Mode" and "Archive Options" as needed. Under the "Advanced" tab, we can use the "Set Password" button to encrypt the compressed file, which can protect the compressed file. “ The appropriate choice of compression method can improve your compression time, such as the compression rate is not very high, can be "fastest". As for "compressed volume size", it is also an important option. I have sent a software to a friend using E-mail. As we all know, the free mailbox size is usually 3MB, so the author is in "screw volume size". Enter “3,000,000” and click “OK”. In this way, a large software is automatically split into multiple files. Then, the authors send them to each other one by one, and the other party puts all the files in a directory, and by decompressing a file, the software is restored. In the "File" tag item, WinRAR provides the function of adding and deleting files. With this item, we can add files to the compressed package and delete one of the useless files in the compressed package. In the “Backup” tab item, we can back up the files in the archive in time through various options. In the "Comment" item, we can add a note to the zip file for further verification. 2. Unpacking the package file For decompression, WinRAR also provides a simple method: in the system resource, use the right mouse button to click on the compressed package file, and include three WinRAR decompression commands in the system right-click menu, where &ldquo ; Release the file to. . . ” can customize the path and file name of the decompressed file, "release the file here" is the easiest way to express the file in the extended archive to the current path, "release the file to XXX"; Create a folder with the same name as the archive in the current path, and then expand the archive file to this path. It is convenient to use whatever is used. WinRAR can also be decompressed by double-clicking the RAR archive to call the WinRAR program. It is provided in the program interface: unzip to the current folder, preview the document, test the compressed document, delete the document, add comments to the compressed document, protect the current The ability to compress documents, generate self-extracting files, change file paths, and more. Here we just select the document, then right click to select the desired function can be achieved, very convenient. When decompressing some files in the compressed package, you can use the following methods: Select the files or folders to be decompressed in the WinRAR interface. If you want to decompress multiple files or folders at a time, you can use “ Ctrl + left mouse button & rdquo; for discontinuous object selection, or use “Shift + left mouse button to select multiple consecutive objects, then use the left mouse button to directly drag to the Explorer, or in Right click on the selected file and select the corresponding release directory. 3. Making a self-extracting file If we want to use WinRAR to make a self-extracting file for a compressed file, we can select the file in the main interface of the program and select the “Self-release format” button in the toolbar. (Also The zip file can be made into an EXE file by the shortcut key "Alt+X”". If the content of the file is viewed next time, we only need to click the EXE file to decompress it without calling WinRAR. In addition, WinRAR also provides the function of generating the volume self-extracting file, converting the compression format, etc. It is also very simple to use, so I won't go into details here. Advanced Tips 1. Compressed package test: If you need to test the integrity of the compressed package (ie CRC check), after opening the compressed package file, click the “test" button in the interface button bar, the program will automatically start testing , after the completion of the associated dialog box. 2. Compressed package commenting, this is a very good feature. To add a comment to a zip file, first open the zip file and click the "comment" button in the button bar of the interface. The program gives the associated Archive file in the Archive file. Comment information, and then click the "OK" button to return to the program interface, you can see an additional window in the interface, which provides the annotation text we just set. 3. Protect the compressed package and lock the compressed package function: Use these two functions to prevent the compressed package from being accidentally modified. If you need to protect the compressed package, you can use the mouse to click the “protect" button in the WinRAR interface button bar. If you need to lock the zip package, click the “Unlock” button in the button bar. In this explanation, if you use the lock function to lock the compressed package, you will not be able to add files to the compressed package in the future, and you cannot delete or edit the files in the compressed package. This function is one-way and cannot be canceled. Yes, remind everyone that when you go online, you must pay attention to prevention. We will give a detailed introduction to the things that individual Internet users need to guard against, and hope to be helpful to everyone. 4. Repair the damaged zip. WinRAR also provides the ability to fix corrupted tarballs. This is a very useful feature, just like the compression package protection described earlier. If the compression package is damaged due to carelessness, you can use this function to try to repair the compressed package, sometimes with unexpected effects. The specific operation steps are as follows: First, select the corresponding compressed package file in the system file list window of the program; click the “fix” button in the button of the program interface, and the program gives an association. The "Repair" dialog box, select the path to repair the file and click "OK", the program starts to analyze the target package, and then generates a repaired file named "ldquo" in the specified path. _reconst.rar” compression package. The files in the archive can now be used. 5. View of the documents. WinRAR has a file viewer that allows you to view the contents of a text file in a compressed package without unpacking (the files contained in the compressed package file are also viewable). First double-click on any of the archives in Explorer or Windows Commander. WinRAR will open all the files in the archive (it is not decompressed). Double-click on the text file, and the dialog box shown in the figure will appear. Click the “Open and Execute” button to open the text file and modify the file. 6. The analysis function of the compressed package. Using this function, you can get a comparison list of compression ratio and compression time when compressing files in RAR and Zip format, which is helpful for us to choose which format to compress the file. Run WinRAR main program interface, first select the file or folder to be compressed, and then press the “estimate” button in the button bar, the program will automatically perform compression analysis, and then give the statistics result dialog box. There are still a lot of functions of this software, Xiaobian will not elaborate on it. The above mentioned are more commonly used functions, in addition, like adding compressed files to favorites, changing the current driver and so on, you can also try with interest, I believe you will find its power.