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html line break escape

May 09, 2023 am 10:08 AM

HTML换行转义是指在HTML文本中使用特定的代码表示换行的操作。在HTML中,换行是一个重要的元素,它能够在页面排版中起到重要作用,使文本在不同位置展现更加整齐美观。

在HTML中,换行是通过标签 &lt;br&gt; 表示的,这个标签并不需要闭合,即可以写成 &lt;br&gt; 也可以写成 <br/>

但是,在有些情况下,我们在文本中需要使用特殊字符(例如“<”、“>”、“&”等),这些字符在HTML文本中可能会被解释为标签,导致文本显示异常。为了解决这个问题,HTML提供了一些预定义的字符实体,使得这些特殊符号能够得到正确地解释。

在HTML中,换行符也可以使用字符实体表示,常见的换行字符实体有:

  • &lt;br&gt;:表示普通的换行操作;
  • <br/>:表示在XHTML中的换行操作;
  • &lt;br&gt; 或者 &#60;br&#62; :表示“&lt;br&gt;”标签的实体表示。

通过字符实体表示换行的好处在于,即使在纯文本中复制粘贴过来,也不会误被解释为标签,保证了HTML的正确解析。

当然,我们可以在纯文本中使用“&lt;br&gt;”或“&lt;br&gt;”来表示换行,但是这样不能够得到HTML解析器正确的解析。另外,由于不同的操作系统和软件会采用不同的方式表示换行,因此使用字符实体表示换行可以保证在不同的环境下均能得到正确的解析结果。

总之,HTML换行转义是一种方便、可靠并且被广泛采用的方式,在编写HTML文本时应当注意正确地使用。

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