end: int | None = None) → Generator[bytes, None, None] Retrieve the content of the requested resource which is located at the given absolute path. This class method may be overridden by subclasses version 3.1. classmethod get_content_version(abspath: str) → str Returns a version string for the resource at the given path. This class method may be overridden by subclasses. The default implementation file’s contents. Added in version 3.1. get_content_size() → int Retrieve the total size of the resource at the given path. This method may be overridden by subclasses. Added in version 3.1. Changed

[https://docs.python.org/3/library/constants.html#None]] Retrieve the content of the requested resource which is located at the given absolute path. This class method may be overridden by subclasses html#str]) → str [https://docs.python.org/3/library/stdtypes.html#str] Returns a version string for the resource at the given path. This class method may be overridden by subclasses. The default implementation get_content_size() → int [https://docs.python.org/3/library/functions.html#int] Retrieve the total size of the resource at the given path. This method may be overridden by subclasses. Added in version 3.1. Changed

String 的作 者可以放置释放内存的代码。Rust 在结尾的 } 处自动调用 drop。 注意：在 C++ 中，这种 item 在生命周期结束时释放资源的模式有时被称作 资源获取 即初始化（Resource Acquisition Is Initialization (RAII)）。如果你使用过 RAII 模式的 话应该对 Rust 的 drop 函数并不陌生。 这个模式对编写 Rust 代码 里客户端使用了 GET 请求，表明它在请求信息。 请求行接下来的部分是 /，它代表客户端请求的 统一资源标识符（Uniform Resource Identifier，URI）：URI 大体上但也不完全类似于 URL（统一资源定位符，Uniform Resource Locators）。URI 和 URL 之间的区别对于本章的目的来说并不重要，不过 HTTP 规范使用术语 URI，所以这里可以简单的将