Perforce A Custom Importer Summary Git Internals Plumbing and Porcelain Git Objects Tree Objects Commit Objects Object Storage Git References The HEAD Tags Remotes Packfiles The Refspec Protocols Summary Maintenance and Data Recovery Maintenance Data Recovery Removing Objects Environment Variables Global Behavior Repository Locations Pathspecs Committing Networking Diffing and Merging about Git and can wield it with power and grace, you can move on to discuss how Git stores its objects, what the object model is, details of packfiles, server protocols, and more. Throughout the book

Perforce A Custom Importer Summary Git Internals Plumbing and Porcelain Git Objects Tree Objects Commit Objects Object Storage Git References The HEAD Tags Remotes Packfiles The Refspec Protocols Summary Maintenance and Data Recovery Maintenance Data Recovery Removing Objects Environment Variables Global Behavior Repository Locations Pathspecs Committing Networking Diffing and Merging about Git and can wield it with power and grace, you can move on to discuss how Git stores its objects, what the object model is, details of packfiles, server protocols, and more. Throughout the book

are declared by creating an scrapy.item.Item class an defining its attributes as scrapy.item.Field objects, like you will in an ORM (don’t worry if you’re not familiar with ORM’s, you will see that this is is in charge of processing the response and returning scraped data (as Item objects) and more URLs to follow (as Request objects). This is the code for our first Spider, save it in a file named dmoz_spider the content of both URLs. What just happened under the hood? Scrapy creates scrapy.http.Request objects for each URL in the start_urls attribute of the Spider, and assigns them the parse method of the

are declared by creating an scrapy.item.Item class an defining its attributes as scrapy.item.Field objects, like you will in an ORM (don’t worry if you’re not familiar with ORMs, you will see that this is is in charge of processing the response and returning scraped data (as Item objects) and more URLs to follow (as Request objects). This is the code for our first Spider; save it in a file named dmoz_spider the content of both URLs. What just happened under the hood? Scrapy creates scrapy.http.Request objects for each URL in the start_urls attribute of the Spider, and assigns them the parse method of the

are declared by creating an scrapy.item.Item class an defining its attributes as scrapy.item.Field objects, like you will in an ORM (don’t worry if you’re not familiar with ORMs, you will see that this is is in charge of processing the response and returning scraped data (as Item objects) and more URLs to follow (as Request objects). This is the code for our first Spider; save it in a file named dmoz_spider the content of both URLs. What just happened under the hood? Scrapy creates scrapy.http.Request objects for each URL in the start_urls attribute of the Spider, and assigns them the parse method of the

（由于它是系统配置文件，因此你需要管理员或超级用户权限 来修改它。） 2. ~/.gitconfig 或 ~/.config/git/config 文件：只针对当前用户。 你可以 传递 --global 选项让 Git 读写此文件，这会对你系统上 所有 的仓库生 效。 3. 当前使用仓库的 Git 目录中的 config 文件（即 .git/config）：针对该仓 库。 你可以传递 --local 提交都会使用这些信息，它们会写入到你的每一次提交 中，不可更改： $ git config --global user.name "John Doe" $ git config --global user.email johndoe@example.com 再次强调，如果使用了 --global 选项，那么该命令只需要运行一次，因为之 后无论你在该系统上做任何事情， Git 都会使用那些信息。 没有 -- global 选项的命令来配置。 很多 GUI 工具都会在第一次运行时帮助你配置这些信息。 文本编辑器 既然用户信息已经设置完毕，你可以配置默认文本编辑器了，当 Git 需要你输 入信息时会调用它。 如果未配置，Git 会使用操作系统默认的文本编辑器。 如果你想使用不同的文本编辑器，例如 Emacs，可以这样做： $ git config --global core.editor

Statements Input and output Data types Nim source code Control structures Objects Arrays and sequences Slices Value objects and references References and pointers Procedures and functions Object-oriented Instead of classes, we use object types in Nim, and we define procedures and methods that can work on objects or other data types. As an example of the functional programming style in Nim, we could examine OOP support and true classes. While Nim does support OOP design with heap-allocated reference objects, inheritance, and methods with dynamic runtime dispatch, it does not strongly enforce its use. People

Statements Input and output Data types Nim source code Control structures Objects Arrays and sequences Slices Value objects and references References and pointers Procedures and functions Object-oriented Instead of classes, we use object types in Nim, and we define procedures and methods that can work on objects or other data types. As an example of the functional programming style in Nim, we could examine OOP support and true classes. While Nim does support OOP design with heap-allocated reference objects, inheritance, and methods with dynamic runtime dispatch, it does not strongly enforce its use. People

prototype-bean dependencies Request, session, global session, application, and WebSocket scopes Initial web configuration Request scope Session scope Global session scope Application scope Scoped beans FormatterRegistry SPI FormatterRegistrar SPI Configuring Formatting in Spring MVC Configuring a global date & time format Spring Validation Overview of the JSR-303 Bean Validation API Configuring a Bean AspectJ with Spring applications Using AspectJ to dependency inject domain objects with Spring Unit testing @Configurable objects Working with multiple application contexts Other Spring aspects for AspectJ

prototype-bean dependencies Request, session, global session, application, and WebSocket scopes Initial web configuration Request scope Session scope Global session scope Application scope Scoped beans FormatterRegistry SPI FormatterRegistrar SPI Configuring Formatting in Spring MVC Configuring a global date & time format Spring Validation Overview of the JSR-303 Bean Validation API Configuring a Bean AspectJ with Spring applications Using AspectJ to dependency inject domain objects with Spring Unit testing @Configurable objects Working with multiple application contexts Other Spring aspects for AspectJ