) are used to determine the location of a resource like a file in a file system, typically inside a network environment. A URL consists of a protocol specifier, a host specifier and a file and path specifier:
）用于确定资源（例如文件）在文件系统，尤其是在网络环境中的位置。一个 URL 由协议指定符、主机指定符以及文件和路径指定符组成：