如果类没有被创建,则没有对应的成员,也就无法访问
下面这种方法需要先创建类,并将类作为参数传递给静态成员函数才能访问。
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#include <iostream>
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using namespace std;
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class person {
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public:
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virtual void get_name()=0;
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};
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class student:public person
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{
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public:
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void get_name()
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{
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cout <<"student name"<<endl;
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}
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static void get_age(student *_s);
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student();
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private:
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int m_age;
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};
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student::student()
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{
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m_age = 11;
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}
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void student::get_age(student *_s)
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{
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cout <<"student age: "<<_s->m_age<<endl;
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}
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student *create_person()
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{
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return new student();
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}
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int main()
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{
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student *p = create_person();
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p->get_name();
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student::get_age(p);
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return 0;
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}
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