我不知道如何通過我的對象對象(但它應該是數組): Data structure Error: Cannot find a differ supporting object '[object Object]' of type 'object'. NgFor only supports binding to Iterables such as Arrays. 視圖結構: <a *ngFor="let
當我試圖掃描/搜索的文件,它拋出: IndexError: list index out of range on the line "list = self.scanFolder(path[t])" 這是一個對象,並有一些方法/函數這裏沒有顯示,因爲它們是不相關的這段代碼。 def scanFolder(self, path):
try:
return os.listdir(
假設我定義zipWith這樣的: def zipWith[A](f:(A, A) => A)(xs:Iterable[A], ys:Iterable[A]): Iterable[A] =
(xs, ys).zipped map f
現在我想使用的壓縮和解矩陣這樣的: type Matrix = Vector[Vector[Int]]
val zipMatrix: ((Int, I