题解 | #友元全局函数#
友元全局函数
http://www.nowcoder.com/practice/4f39f32887b643e8a8dca115df4618de
#include using namespace std;
class Person { // write your code here...... friend void showAge(Person& p);
public:
Person(int age) {
this->age = age;
}
private:
int age;
};
void showAge(Person& p) { cout << p.age << endl; }
int main() {
Person p(10);
showAge(p);
return 0;
}
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