angular.js - angularJs

Question

How to make placeholder=" " equal to different values ​​according to two different conditions in angularJs.
<input type="text" name="keyWords" id="keyWords" placeholder="Keyword 1/Keyword 2" class="search-style">

Answer 1

<input type="text" name="keyWords" id="keyWords" placeholder="{{myPlaceholder}}" class="search-style">

Inside Controller

$scope.myPlaceholder = '关键词';