Passing file stream objects to functions [Updated]
ifstream.定義用來從檔案連續讀取單一位元組字元的資料流。ifstream是特製化類別範本basic_ifstream的chartypedef。另外還有wifstream,這是 ...,Useanifstreamwhenyouonlywanttoperforminput,anofstreamforoutputonly,andanfstreamforastreamonwhichyouwanttoperfo...。參考影片的文章的如下: