课程和不可接受的成员
我很难理解如何修复此代码，我收到的错误消息是两个点:: x＆amp;点:: y是无法访问的。我该如何解决？
class Point {
int x, y;
public:
Point(int u, int v) : x(u), y(v) {}
int getX() { return x; }
int getY() { return y; }
void setX(int newX) { x = newX; }
void setY(int newY) { y= newY; }
};
int main() {
Point p(5, 3);
std::cout << p.x << ' ' << p.y;//should print out 5 3
return 0;
}
I am having a hard time understanding how to fix this code I get the error message that both point Point::x & Point::y are inaccessible. How do I fix this?
class Point {
int x, y;
public:
Point(int u, int v) : x(u), y(v) {}
int getX() { return x; }
int getY() { return y; }
void setX(int newX) { x = newX; }
void setY(int newY) { y= newY; }
};
int main() {
Point p(5, 3);
std::cout << p.x << ' ' << p.y;//should print out 5 3
return 0;
}
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问题是数据成员
x和y是private默认为类类型< /strong>使用关键字class定义（与关键字struct相反）。到 solve 您可以使用geters
getx和gety所示的错误，如下所示：demo 。
另一个选项（少/不建议）是制作
X和ypublic> public> public> struct 关键字和seters（setx和sety）。The problem is that the data members
xandyareprivateby default for a class type defined using the keywordclass(as opposed to keywordstruct).To solve the error you can use the getters
getXandgetYas shown below:Demo.
Another option(less/not recommended) would be to make
xandypublic or usestructkeyword but that would defeat the purpose of having getters and setters(setXandsetY).类成员（与结构成员相反）默认为私有>点;但是，您已经为那些公开的值定义了getters。
Class members (as opposed to struct members) are private by default so you can't directly access
Point::xandPoint::youtside of the definition ofPoint; however, you have defined getters for those values which are public.