鍦–++涓紝鍙嬪厓鍑芥暟鍙互鐩存帴璋冪敤锛屼笉闇€瑕侀€氳繃瀵硅薄鎴栫被鐨勫疄渚嬫潵璋冪敤銆傚弸鍏冨嚱鏁板彲浠ュ湪绫荤殑鍐呴儴澹版槑鍜屽畾涔夛紝瀹冨彲浠ヨ闂被鐨勭鏈夋垚鍛樺拰淇濇姢鎴愬憳銆?/p>

浠ヤ笅鏄竴涓ず渚嬩唬鐮侊紝灞曠ず浜嗗浣曚娇鐢ㄥ弸鍏冨嚱鏁拌皟鐢ㄧ被鐨勭鏈夋垚鍛橈細

#include<iostream>
using namespace std;
class MyClass {
private:
int privateVar;
public:
MyClass(int value) {
privateVar = value;
}
friend void displayPrivateVar(MyClass obj); // 澹版槑鍙嬪厓鍑芥暟
};
// 瀹氫箟鍙嬪厓鍑芥暟
void displayPrivateVar(MyClass obj) {
cout << "Private variable value is: " << obj.privateVar << endl;
}
int main() {
MyClass obj(10);
displayPrivateVar(obj); // 璋冪敤鍙嬪厓鍑芥暟
return 0;
}

鍦ㄤ笂杩颁唬鐮佷腑锛?code>displayPrivateVar 鍑芥暟鏄?MyClass 绫荤殑鍙嬪厓鍑芥暟銆傚畠鍙互鐩存帴璁块棶 privateVar 绉佹湁鎴愬憳鍙橀噺锛屽苟灏嗗叾鎵撳嵃鍒版帶鍒跺彴銆傚湪 main 鍑芥暟涓紝鎴戜滑鍒涘缓浜嗕竴涓?MyClass 瀵硅薄 obj锛岀劧鍚庝娇鐢?displayPrivateVar 鍑芥暟鏉ヨ闂苟鏄剧ず obj 鐨勭鏈夋垚鍛樺彉閲忋€?/p>

杈撳嚭缁撴灉涓猴細

Private variable value is: 10