如何在angular metarial 8中单击关闭按钮分别关闭多个对话框

npm install @angular/material @angular/cdk @angular/animations

import { MatDialog, MatDialogRef } from '@angular/material/dialog';

constructor(private dialog: MatDialog) { }

dialogRef1: MatDialogRef<any>;
dialogRef2: MatDialogRef<any>;

this.dialogRef1 = this.dialog.open(DialogComponent1, {
  width: '250px',
  data: { name: 'Dialog 1' }
});

this.dialogRef2 = this.dialog.open(DialogComponent2, {
  width: '250px',
  data: { name: 'Dialog 2' }
});

<button mat-button (click)="closeDialog()">关闭</button>

closeDialog() {
  this.dialogRef.close();
}