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作者 Dsman 在 PTT [ C_and_CPP ] 看板的留言(推文), 共20則
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3F→:謝謝樓上二位的回答~10/10 16:01
4F→:也就是說 Derive裡雖然有Base::data2 但是必須靠它所繼承來10/10 16:03
5F→:的父類別中的public 或 protected的function來存取10/10 16:03
6F→:而Base::data1則是可以由自己的member function直接存取10/10 16:04
11F→:感謝回答 我大概懂了10/10 16:12
13F→:剛剛做了一下實驗 發現如果我有兩個instance: Base a 和10/10 22:26
14F→:Derive b，b不能存取a的protected部分的data耶10/10 22:28
15F→:意思是說 b只能存取自己所繼承來的Base::(protected data)10/10 22:29
16F→:嗎? 不過如果有兩個Base instance A1&A2 彼此可以存取對方的10/10 22:30
17F→:private資料10/10 22:30
18F→:不曉得我上面這樣講對不對?10/11 01:54
20F→:感謝樓上的回答~!!10/11 22:06
3F→:不過我不知道哪邊有問題 而且CODE很長耶...04/05 20:45
5F→:喔喔 OK 我試試04/05 20:48
9F→:已解決了04/07 00:39
10F→:似乎是當我重新玩第二次的時候 OS分配的記憶體與之前宣告的04/07 00:40
11F→:global pointer指向的記憶體重複到 所以變成兩個pointer指向04/07 00:41
12F→:同一塊記憶體 導致free了兩次 把每次重新玩的時候再跟OS要04/07 00:42
13F→:新的記憶體就解決了04/07 00:42
14F→:不過怪的是原本的程式 別人的跑出來沒有BUG 我的有 XD04/07 00:43
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