样例： <ion-datetime displayFormat="MM/YYYY" pickerFormat="MMMM YYYY" [(ngModel)]="myDate"></ion-datetime> 其显示样式如下：

* | Description          | Format                 | Datetime Value Example       | * |----------------------|------------------------|------------------------------| * | Year                 | YYYY                   | 1994                         | * | Year and Month       | YYYY-MM                | 1994-12                      | * | Complete Date        | YYYY-MM-DD             | 1994-12-15                   | * | Date and Time        | YYYY-MM-DDTHH:mm       | 1994-12-15T13:47             | * | UTC Timezone         | YYYY-MM-DDTHH:mm:ssTZD | 1994-12-15T13:47:20.789Z     | * | Timezone Offset      | YYYY-MM-DDTHH:mm:ssTZD | 1994-12-15T13:47:20.789+5:00 | * | Hour and Minute      | HH:mm                  | 13:47                        | * | Hour, Minute, Second | HH:mm:ss               | 13:47:20                     |