可以像*ngFor一样获取行索引，在里面添加let i = index

You can get the row index the same way like *ngFor, add let i = index within the <md-row>

<md-row *cdkRowDef="let row; columns: displayedColumns; let i = index; let isOdd = odd; let isEven = even; let isLast = last" 
         [ngClass]="{'highlight': selectedRowIndex == row.id}"
         (click)="highlight(row, i, isOdd, isEven, isLast)">
</md-row>

ts:

highlight(row, index, oddFlag, evenFlag, lastFlag){
    alert("index:" + index + " odd: " + oddFlag + " even: " + evenFlag + " last: " + lastFlag);
    this.selectedRowIndex = row.id;
}

Plunker 演示