FILE = Path(__file__).resolve()

This line of code creates a variable called "FILE" that stores the absolute path of the current Python file being executed.

The "Path" function is part of the "pathlib" module and is used to represent file system paths as objects.

The "__file__" attribute is a built-in attribute of Python modules that stores the path of the module file.

The "resolve()" method is called on the Path object to resolve any symbolic links and return the absolute path.

相关问题

def __init__( self, volume_path: Union[str, Path], minimum_file_number: int = 64, extensions: Tuple = ( ".cb", ".png", ".tif", ".tiff", ".jpg", ".jpeg", ), volume_info_file_name: str = VOLUME_INFO_FILE_NAME, ) -> None: self.volume_path = Path(volume_path).resolve() self.minimum_file_number = minimum_file_number self.extensions = extensions self.volume_info_path = Path(self.volume_path, volume_info_file_name) self.__image_files: List[Path] = None assert self.volume_path.is_dir()请完整详细解释每一行代码的意思

这段代码是一个Python类的构造函数，用于初始化类的属性。以下是每一行代码的意思：

- def __init__(self, volume_path: Union[str, Path], minimum_file_number: int = 64, extensions: Tuple = (".cb", ".png", ".tif", ".tiff", ".jpg", ".jpeg", ), volume_info_file_name: str = VOLUME_INFO_FILE_NAME, ) -> None:
这是构造函数的头部，其中包括参数列表和返回值。它接收一个必要参数volume_path和三个可选参数minimum_file_number、extensions、volume_info_file_name，返回None。

- self.volume_path = Path(volume_path).resolve()
这一行代码将传入的volume_path参数转换为Path对象，并使用.resolve()方法获取绝对路径，并将其赋值给类的volume_path属性。

- self.minimum_file_number = minimum_file_number
这一行代码将minimum_file_number参数的值直接赋给类的minimum_file_number属性。

- self.extensions = extensions
这一行代码将extensions参数的值直接赋给类的extensions属性。

- self.volume_info_path = Path(self.volume_path, volume_info_file_name)
这一行代码使用已解析的volume_path和volume_info_file_name参数创建一个新的Path对象，并将其赋值给类的volume_info_path属性。

- self.__image_files: List[Path] = None
这一行代码定义了一个私有属性__image_files，使用Python类型提示说明其类型为List[Path]，初始值为None。

- assert self.volume_path.is_dir()
这一行代码使用断言检查volume_path是否为一个目录，如果不是，则会抛出AssertionError。

from pathlib import Path FILE = Path(__file__).resolve() ROOT = FILE.parents[1]

这段代码的作用是获取当前文件所在路径的父级目录的父级目录，并将其赋值给变量 ROOT。其中，__file__是Python内置变量，表示当前模块（文件）的绝对路径，Path(__file__)则将其转化为Path对象，resolve()方法可以获取其真实路径，parents属性可以获取当前路径的父级目录。[1]表示父级目录的父级目录，即向上跳了两级，最终得到的是项目的根目录。