word-break: break-word;根据空格断词处理,超过换行
word-wrap: break-word;根据空格断词处理,超过换行
word-break: break-all;不根据空格断词处理,超过长度强行换行
word-break,控制单词如何被拆分换行。它有三个值:normal | break-all | keep-all
word-wrap(overflow-wrap)控制长度超过一行的单词是否被拆分换行,是word-break
的补充,它有两个值:normal | break-word