如果您需要运行任意 JavaScript 代码，请使用控制器方法，或者您可以定义返回 true 或 false 的过滤器.

Use a controller method if you need to run arbitrary JavaScript code, or you could define a filter that returned true or false.

我刚刚测试过(应该先完成)，并且像 ng-show="!a && b" 之类的东西按预期工作.

I just tested (should have done that first), and something like ng-show="!a && b" worked as expected.