<ion-select class="app-select" [placeholder]="placeholder" cancelText="取消" okText="确定"  [disabled]="disabled" [(ngModel)]="selectValue"
    [selectedText]="getSelectText(items, value)">
    <ion-select-option *ngFor="let item of items" [value]="item.value">{{item.text}}</ion-select-option>
</ion-select>