I keep seeing "bootstrapping" mentioned in discussions of application development. It seems both widespread and important, but I've yet to come across even a poor explanation of what bootstrapping actually is; rather, it seems as though everyone is just supposed to know what it means. I don't, though. Near as I can figure, it has something to do with initialization tasks required of an application upon launch, but I could be completely wrong about that. Can anyone help me to understand this idea?
当前回答
问题已经回答了。用于网页开发。 到目前为止,我在Laravel文档中找到了一个关于引导的很好的解释。这是链接
一般来说,我们指的是注册事物,包括注册服务 容器绑定、事件监听器、中间件,甚至路由。
希望对学习web应用程序开发的人有所帮助。
其他回答
“Bootstrapping”来源于“靠自己的力量把自己拉起来”这个词。这些你可以从维基百科上得到。
在计算中,引导加载程序是机器启动时运行的第一段代码,负责加载操作系统的其余部分。在现代计算机中,它存储在ROM中,但我记得PDP-11上的引导过程,你可以通过前面板开关插入位来将特定的磁盘段加载到内存中,然后运行它。不用说,引导加载程序通常非常小。
“Bootstrapping”也被用作一个术语,用于构建一个使用自身的系统——或者更准确地说,是一个前身版本。例如,ANTLR版本3使用在ANTLR版本2中开发的解析器编写。
参见维基百科关于引导的文章。
有一个部分和链接解释了它在计算中的含义。它在这个领域有四种不同的用途。
这里有一些引用,但要更深入的解释和其他含义,请参考上面的链接。
"...是一种技术,通过一种简单的计算机程序激活一个更复杂的程序系统。” “自举一词的另一种用法是使用编译器来编译自己,首先用现有语言编写一种新编程语言的编译器的一小部分,然后用新语言编写更多的新编译器程序。”
在一些web框架中有一个引导的例子。你调用index.php (bootstrapper),然后它加载框架的助手、模型、配置,然后加载控制器并将控制权传递给它。
正如您所看到的,这是一个启动大进程的简单文件。
I belong to the generation who flipped switches to enter a boot program. In the early 1980s, I worked on a microcomputer called Micro-78, developed by Electronics Corporation of India Ltd (ECIL). It was a sort of clone of Altair 8800. I distinctly remember what happens when a small boot program was entered using the toggle switches and executed by pressing a button. The program reads a second boot program contained in the 1st track of the floppy disk and overwrites it on itself in such a way that the second boot program starts executing to load a disk operating system. I think the term "bootstrap" refers to this process of the first boot program reading and overwriting the second boot program on itself, in a way "pulling itself up" with the additional functionality of the second boot program. That may be the origin of the original meaning of "the bootstrap program".
恕我冒昧,没有比第一个编译器是如何编写的更好的解释了?
现在,操作系统加载是最常见的过程,称为引导