What is the principle of compressing files What is the function of compression software?

The principle of compressing a file is to reduce the size of the file by removing duplicate content or redundant information in the file through an algorithm, which can be operated with the help of an easy-to-use compression software, such as [Hi Format Compression Master].

Recommended reason: Hi Format Compression Master is a tool that can compress a variety of file types, including **, **, pdf, word and ppt, etc., with many compression modes, which can not only reduce the file size, but also maintain the file quality to a certain extent.

2. After entering the **compression interface, add**, and select the appropriate compression mode, which is divided into several modes: ordinary compression, clarity priority, extreme compression and custom compression, here we take ordinary compression as an example.

<> when you encounter the problem that the file size is too large, you can use Hi Format Compression Master.

For compression operations, the software supports batch compression of files and custom setting of various compression parameters, which can adapt to different needs in various scenarios.

What is a compressed file?

To put it simply, the file compressed by the compression software is called a compressed file, and the principle of compression is to compress the binary ** of the file, and reduce the adjacent 0,1**, for example, there is 000000, you can turn it into 6 0 to write 60, to reduce the space of the file.

How do I compress a file?

First of all, you need to install compression software, and now the more popular is Winrar an efficient and fast file compression software (Chinese version).

The second is to create a zip package: select the file or folder you want to make into a zip package, of course, you can also select multiple files, the same method as Explorer, that is, hold down Ctrl or Shift and select the file (folder). Once you've made your selection, you can click on the "Compress" button on the toolbar, where you can choose the compression format

RAR and ZIP. If you want to get a larger compression ratio, it is recommended to choose the RAR format.

After selecting each option, click the OK button to start making the compressed package, which is very convenient.

Sometimes you will encounter this problem, that is, you want to upload some file compressed packages in a forum, and the size of the compressed package is 3M, but the forum limits the upload size of members to only 2M, what should I do?

In fact, the solution is very simple, that is, when you compress this file, divide it into several compressed packages with volumes, and set the size of the volume package to 2m, for example: the original file name, after compressing the volume package, it is with two files, so that you can upload it.

Here's how:

1. Right-click on the file you want to compress.

2. Add to the compressed file.

3. Choose a routine.

4. Choose the best compression method.

5. Approve the size of the compressed volume (calculated by bytes), 1m = 1024k, 1k = 1024 bytes, and fill in the numbers.

Here's how:

2. All volumes must be in the same folder.

3. Then double-click to unzip the first volume.

1. Save disk space.

2. Multiple files can be compressed into a compressed package, which is convenient for file transfer.

3. You can compress the file and add password protection.

How to use: 1. First, right-click the folder in the computer, and click "Add to new folder" in the pop-up options, the name of the compressed file is the same as the folder by default.

2. Wait for the system to perform the compression operation, and then a compressed file package with the same name as the folder can be generated.

3. If you need to encrypt the compressed file of Jirushen, you can right-click the folder and select "Add Rubber to Compressed File" and click "Add Password" in the dialog box that opens.

4. After clicking, the dialog box to set the password will pop up, and enter the password according to the prompts, and click the OK button.

The principle of compression is to compress the binary ** of the file, and reduce the adjacent 0,1**, for example, if there is 000000, you can turn it into 6 0s to write 60 to reduce the space of the file.

Since the information processed by the computer is represented in the form of binary numbers, the compression software is to mark the same string in the binary information with special characters to achieve the purpose of compression.

To help understand file compression, imagine a picture of blue sky and white clouds in your mind. For thousands of monotonous and repetitive blue dots, instead of defining "blue, blue, blue?" one by one. "It's a long string of colors, it's better to tell the computer:

Storing 1117 blue dots from this location is so boring and concise, and it also saves a lot of storage space.

This is an example of very simple image compression. In fact, all computer files are stored in the form of "1" and "0" in the final analysis, and like blue dots, as long as the volume of the file can be greatly compressed through reasonable mathematical formulas, to achieve the effect of "lossless and dense data".

The principle of compression is to compress the binary ** of the file, and reduce the adjacent 0,1**, for example, there is 000000, you can turn it into 6 0 to write 60 to reduce the space of the file. The basic principle of compressing a file is to find duplicate bytes within a file and create an identical one"Dictionaries"file, and denote it with a **, for example, there are several places in the file with the same word"People's Republic of China"Represented by a ** and written"Dictionaries"files, so that the purpose of shrinking the file can be achieved.

An SFX (self-extracting) self-extracting file is a type of compressed file, because it can be automatically decompressed by simply double-clicking on the file without the help of any compression tool, so it is called a self-extracting file. Compared to compressed files, the size of the self-extracting compressed file is larger than that of a normal compressed file (because it has a built-in self-extracting program), but it has the advantage that it can open the compressed file (the file type is in .exe format) without installing the compression software.

It is a file that has been compressed and enveloped by compression software, which may be 1 file or N files, which is not only convenient for transmission, but also can reduce the size, and even resist some viruses, mainstream compressed files include RAR and ZIP, etc.

A compressed file is software that can compress multiple files into a single file, or compress a file to reduce its size.

First of all, we need to have a decompression software, because if you save a file in the form of a compressed file, then there is no way to open this kind of file without decompression software. After that, you can find the file you have, and we can find that it has now become a bundle of multiple books, which means that you can open the file directly.

Now let's try to decompress the bt torrent file, click on the selected one and double-click on the compressed file with the left mouse button. Now let's choose to decompress these files to**,For example, I put it in the new folder of the z drive,Click on this folder,Then click OK,Then you can start to decompress,If you**The compressed file is larger,Then decompression is more time-consuming,It will also take up a lot of resources。

Compressing a file can make the memory of the file smaller. Here's how to compress a file:

1. Find the file you want to compress in your computer.

2. Right-click on the file and click on the Add to Compressed File option.

3. Next, select a storage path for the compressed file in the change directory.

4. Next, click Custom Compress File to set the relevant format.

5. After setting, click Compress, so that you can compress the file.