如何在angularjs中使用ng-options添加默认的--select--字段

Question

我需要 - 选择 - 字段作为使用ng-options的默认值

 <select ng-model="editedField.operator" ng-options="operator as operator for operator in opConditions"></select>

Answer 1

像这样使用

 <select ng-model="editedField.operator" ng-options="operator as operator for 
 operator in opConditions">
<option value>Select</option>
</select>