如何NavPathStack也支持页面的启动模式

pushPathsingleTop(info: NavPathInfo， animated?: boolean): void {
  this.pageArray = []
  this.pageArray = this.pageInfos.getIndexByName(info.name)
  if (this.pageArray.length == 0) {
  this.pageInfos.pushPath(info， animated)
  return;}
this.pageInfos.moveIndexToTop(this.pageArray.pop()， animated)
}