在md-datepicker angular js上添加Mask

Question

我想在角度js中为md-datepicker的日期选择器添加蒙版输入

<md-datepicker ng-model="Date" style="position: relative; right: 24px">
</md-datepicker>

我试过以下但没有运气:(     MD-掩模=＆＃34 19/39/9999＆，＃34; UI掩模=＆＃34 19/39/9999＆，＃34; MASK =＆＃34 19/39/9999＆，＃34;