[問題] Inheritance
我首先寫了一個Package Class
裡面有一個showDetail()是把Package中的各個data member照格式輸出
該function有呼叫一個Package中的函式calculateCost()
然後我定義了一個derived class TwoDayPackage
並且overload掉原本的calculateCost()
結果在main裡面宣告一個屬於TwoDayPackage的object p1並且call
p1.showDetail();
結果顯示出來的資料並不是overload以後的calculateCost()算出來的結果而是
Package::calculateCost算出來的結果
我就想說是不是base class裡面的function如果有call 該base class 內的另一個
member function時就算有overload掉還是會call base class裡的那一個
所以又在TwoDayPackage裡面定義了(一樣的)showDetail()
結果compile起來有時候是對的有時候是錯的
請問這是compiler defined的東西嗎 還是我compiler的問題
囧 我是用devcpp 我知道很多人不喜歡他不過我們教授是用他所以我也跟著用
最後我是在main裡面直接p1.TwoDayPackage::showDetail才正確
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