【文件属性】：
文件名称：html中br和br/的区别介绍
文件大小：23KB
文件格式：PDF
更新时间：2020-12-13 19:57:13
html
answer from stackflow:
Simply
is sufficient.
The other forms are there for compatibility with XHTML; to make it possible to write the same code as XHTML, and have it also work as HTML. Some systems that generate HTML may be based on XML generators, and thus not have the ability to output just