私有析構函數

原創 wuyilun526 2020-02-24 13:20

把析構函數定義爲私有成員可以保證只能在堆上new一個新的類對象.

下面寫一個簡單的例子驗證一下:

寫一個簡單的類,把它的析構函數變成私有的.


new一個新的類對象,編譯通過,如下圖.


把原來的代碼改動一下,直接在棧上創建對象.


如下圖所示,編譯不通過.


在棧上生成對象時，對象會自動析構，也就說析構函數必須可以訪問。所以如果析構函數私有,則會報錯.

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