Home Web Front-end HTML Tutorial 【鬼脸原创】后端程序员前端之路01_html/css_WEB-ITnose

【鬼脸原创】后端程序员前端之路01_html/css_WEB-ITnose

Jun 24, 2016 am 11:25 AM

目录

  • 了解什么是Web
  • 了解什么是HTML
  • 了解什么是CSS
  • 了解什么是JavaScript
  • 了解HTML与CSS是如何一起工作的
  • 为何要使用CSS
  • 扩展阅读
  •  

    一、了解什么是Web?

            通俗来讲,可以使用户通过浏览器来访问某个电脑上的文件。

    二、了解什么是HTML?

            HTML(超文本标记语言--Hypertext Markup Language),用来结构化Web网站上的内容并给予其含义标记语言。      

    三、了解什么是CSS?

            CSS(层叠样式表),用来装饰网页的代码。

           就好比一个女孩(HTML)经过化妆(CSS)以后,就会变得更漂亮一样。

    四、了解什么是JavaScript?

           JavaScript(脚本语言)是用来实现网页上的特效效果。

           就好比是控制人的行为

    五、了解HTML与CSS是如何一起工作的

            浏览器将HTML与CSS转换为DOM结构,然后将DOM的内容呈现出来。

    六、何要使用CSS

           结构与表现的分离:

           1)避免重复:不同的页面之间有相同的部分要展现同样的效果

           2)更容易维护

           3)更易扩展   :就像博客园的皮肤一样,内容一样,应用不同的皮肤展现的效果不一样,自由切换。       

    七、扩展阅读

            标记语言、脚本语言、编译语言,它们都是什么,以及各自区别?

             1、标记语言:

                  --只是用来组织不同内容之间的一种关系

                  比如:HTML(用来结构化Web服务器上的内容)、XML(将文本内容按照一定规则排列,可以用来“作配置文件”以及“传输数据”)

             2、编译语言

                  --写好的代码,再执行之前。需要先编译为机器语言,然后才能被电脑运行。

                  比如:C#(写好代码,经过编译后才会生成exe程序)

             3、脚本语言

                  --为了缩短传统的编写-编译-链接-运行过程而创建的计算机编程语言。

                比如:JavaScript(写好以后,可以直接被浏览器识别)

     

     

     

     

     

     

          

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