If you include this in the head of your webpage, in an IE conditional comment, your page will render just fine.

如果你将其以IE选择性注释包含在网页的头部，你的页面就能正常渲染了。

youdao

So, without further comment, here is better way to handle explicit way to handle conditional updates and do existential checks in general.

因此，如果没有更多注释，这里有一种更好的方法，可用这种方法来处理通常用来处理条件更新和执行存在检查的显式方式。

youdao

Add protocol-specific elements, transactions, a loop, a comment, conditional processing, and custom code.

添加特定协议元素、事务、循环、注释、条件处理和定制代码。

youdao