如果在本例中您没有看到围绕表格的边框，那么您的浏览器太旧了，或者不支持该属性：

frame="border":

First Row
Second Row

frame="box":

First Row
Second Row

frame="void":

First Row
Second Row

frame="above":

First Row
Second Row

frame="below":

First Row
Second Row

frame="hsides":

First Row
Second Row

frame="vsides":

First Row
Second Row

frame="lhs":

First Row
Second Row

frame="rhs":

First Row
Second Row