Closure Stylesheets allows the use of @if, @elseif and @else in creating conditional branches based on the value of some variables.

Closure Stylesheets让我们可以使用@if、@elseif和@else，从而基于某些变量的值来创建条件语句的分支。

youdao

You can also build more complex conditional tests using an if/elif/else (elif being the equivalent to PHP's elseif), as shown in Listing 8.

您还可以使用 if/elif/else（elif，等价于 PHP 中的 elseif）创建更加复杂的条件测试，如清单 8 所示。

youdao