### Installing the Phone Library - Python

Source: https://github.com/ls0f/phone/blob/master/README.md

This snippet demonstrates how to install the 'phone' library using pip, the standard Python package installer. This command adds the library and its dependencies to your Python environment, making it available for use.

```Python
pip install phone
```

--------------------------------

### Using the Phone Library for Lookup - Python

Source: https://github.com/ls0f/phone/blob/master/README.md

This example illustrates the basic usage of the 'phone' library to perform a phone number lookup. It shows how to import the `Phone` class, instantiate it, and use the `find` method to retrieve information for a given phone number prefix.

```Python
from phone import Phone
p  = Phone()
p.find(1888888)
```

--------------------------------

### Phone.dat File Format Structure

Source: https://github.com/ls0f/phone/blob/master/README.md

This snippet outlines the byte-level structure of the `phone.dat` data file, which stores phone number information. It details the arrangement of the version number, the offset to the first index, the record area, and the index area, providing a blueprint for parsing the file.

```Data Format

        | 4 bytes |                     <- phone.dat 版本号
        ------------
        | 4 bytes |                     <-  第一个索引的偏移
        -----------------------
        |  offset - 8            |      <-  记录区
        -----------------------
        |  index                 |      <-  索引区
        -----------------------
```

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