这里有很多与Bootstrap相关的问题。我看到很多人都在用它。所以我试着去研究它，我找到了官方的Bootstrap网站，但那里只有一个下载部分和几句话。没有什么能解释它是干什么用的……我只知道它是一个前端助手。我试图通过谷歌搜索一些东西，但没有找到具体的东西。我所找到的一切都与计算机科学的定义有关。
所以，我的问题是:
什么是Bootstrap ? 它的用途是什么，它如何帮助前端开发? 我还想了解更多细节。
当前回答
Bootstrap is an open-source Javascript framework developed by the team at Twitter. It is a combination of HTML, CSS, and Javascript code designed to help build user interface components. Bootstrap was also programmed to support both HTML5 and CSS3. Also it is called Front-end-framework. Bootstrap is a free collection of tools for creating a websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions. Some Reasons for programmers preferred Bootstrap Framework Easy to get started Great grid system Base styling for most HTML elements(Typography,Code,Tables,Forms,Buttons,Images,Icons) Extensive list of components Bundled Javascript plugins
摘自About Bootstrap Framework
其他回答
Bootstrap is an open-source Javascript framework developed by the team at Twitter. It is a combination of HTML, CSS, and Javascript code designed to help build user interface components. Bootstrap was also programmed to support both HTML5 and CSS3. Also it is called Front-end-framework. Bootstrap is a free collection of tools for creating a websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions. Some Reasons for programmers preferred Bootstrap Framework Easy to get started Great grid system Base styling for most HTML elements(Typography,Code,Tables,Forms,Buttons,Images,Icons) Extensive list of components Bundled Javascript plugins
摘自About Bootstrap Framework
Bootstrap is the world’s most popular and widely used open-source framework for developing with HTML, CSS, and JS. It is a front-end framework of HTML. Bootstrap helps in building responsive websites or web applications and a 12-column grid system that helps dynamically adjust the website to a suitable screen resolution. The current version of bootstrap is 4.3.1 and the bootstrap team has also officially announced Bootstrap 5 version and changes like removing jquery from bootstrap. Some of the crucial reasons why the bootstrap framework is most preferable are
它很容易使用 Bootstrap有很大的社区支持 定制可以很容易地完成 它提高了开发速度 响应性 更多详细信息，请登录官方网站:https://getbootstrap.com/
在进行基于Bootstrap的项目时，建议使用Bootstrap 5管理模板。
来源:https://vmokshagroup.com/blog/bootstrap-advantages/
Bootstrap是一个带有许多组件的HTML, CSS, JS框架，可以让您快速创建美丽而现代的网站或web应用程序。
以下网站包含示例、元素和可重用组件，您可以使用引导框架集成到您的项目中
bootsnipp.com
startbootstrap.com
bootdey.com
Bootstrap是开源的HTML框架。几乎所有浏览器都兼容。基本上大屏浏览器的宽度是>992px和特大号1200px。因此，通过使用Bootstrap定义的类，我们可以调整屏幕分辨率，以显示从小手机到大屏幕的每个屏幕上的内容。我尽量简短地解释。 例如:
<div class="col-sm-3">....</div>
<div class="col-sm-9">....</div>
Bootstrap是一个开源的，移动优先的CSS, JavaScript和HTML设计实用程序的集合，旨在提供方法来开发常用的web元素，比从头开始编码要快得多(和更聪明)。
促成Bootstrap成功的几个核心原则:
it's reusable it's flexible (i.e: allows custom grid systems, changing responsiveness breakpoints, column gutter sizes or state colors with ease; as a rule of thumb, most settings are controlled by global variables) it's intuitive it's modular (both JavaScript and (S)CSS use a modular approach; one can easily find tutorials on making custom Bootstrap builds, to include only the parts they need) has above average cross-browser compatibility web accessibility out of the box (screenreader ready) it's fairly well documented
