<div ng-init="districts=[
{code: '99', name: '省直', units: [
{code: '9901', name: '省單位1', positions: [
{code: '990101', name: '省職位1' },
{code: '990102', name: '省職位2' }
]},
{code: '9902', name: '省單位2', positions: [
{code: '990201', name: '省職位3' },
{code: '990202', name: '省職位4' }
]}
]},
{code: '01', name: '長沙', units: [
{code: '0101', name: '長沙單位1', positions: [
{code: '010101', name: '長沙職位1' },
{code: '010102', name: '長沙職位2' }
]},
{code: '0201', name: '長沙單位2', positions: [
{code: '010201', name: '長沙職位3' },
{code: '010202', name: '長沙職位4' }
]}
]}]" >
<select ng-model="selectedDistrict" ng-change="selectedUnit=''" ng-options="district.name for district in districts" >
<option value="">---請選擇考區(qū)---</option>
</select>
<select ng-model="selectedUnit" ng-change="selectedPosition=''" ng-options="unit.name for unit in selectedDistrict.units">
<option value="">---請選擇單位---</option>
</select>
<select ng-model="selectedPosition" ng-options="unit.name for unit in selectedUnit.positions">
<option value="">---請選擇職位---</option>
</select>
</div>