友元函數和友元類

時間 2021-01-04

標籤友元简体版

原文原文鏈接

在類中，有public和private，在實際調用時會有訪問限制，友元函數可以用不屬於這個類的非成員函數來訪問一個類中的私有成員。 1、用普通函數來作爲友元函數： 2、用另一個類的成員函數做友元函數： 3、友元類：類也可以聲明爲另一個類的友元類： class A {friend B;} 即

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1. C++ 類(友元函數和友元類)
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3. 友元(友元函數、友元類和友元成員函數) C++
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8. [C/C++] 友元函數和友元類
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