编程学习网为您整理以下代码实例，主要实现：C++私有成员，希望可以帮到各位朋友。
#include <iostream>
using namespace std;
class Box {
public:
double length;
voID setWIDth( double wID );
double getWIDth( voID );
private:
double wIDth;
};
// Member functions deFinitions
double Box::getWIDth(voID) {
return wIDth ;
}
voID Box::setWIDth( double wID ) {
wIDth = wID;
}
// Main function for the program
int main() {
Box Box;
// set Box length without member function
Box.length = 10.0; // OK: because length is public
cout << "Length of Box : " << Box.length <<endl;
// set Box wIDth without member function
// Box.wIDth = 10.0; // Error: because wIDth is private
Box.setWIDth(10.0); // Use member function to set it.
cout << "WIDth of Box : " << Box.getWIDth() <<endl;
return 0;
}
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