C++静态数据成员的继承

基类及其所有子类共用该基类的同一个静态成员变量

真正理解:静态成员从属于类

测试代码:

TestStatic.h:

class TestStatic
{
public:
	static int y;
};
class TestStaticChild :
	public TestStatic
{
};
class TestStaticChild2 :
	public TestStatic
{
};

main.cpp:

#include "TestStatic.h"
#include <iostream>
using namespace std;
int TestStatic::y = 10;
int main() {
	TestStatic test;
	TestStaticChild test1;
	TestStaticChild2 test2;
	TestStatic::y = 1;
	cout << test.y << endl;
	TestStaticChild::y = 2;
	cout << test1.y << endl;
	TestStaticChild2::y = 3;
	cout << test2.y << endl << endl;
	cout << test.y << endl;
	cout << test1.y << endl;
	cout << test2.y << endl;
	system("pause");
	return 0;
}

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转载自blog.csdn.net/qq_41017648/article/details/90031436
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