#include<iostream>
using namespace std;
#include<string>
class Students;
class Teachers
{
private:
Students* pStudents;
public:
string m_Name;
string m_ID;
void CheckHomework()
{
cout << "正在检查" << pStudents->m_Homework << endl;
}
};
class Students
{
friend Teachers;
public:
Students():m_Homework("作业")
{
}
string m_Name;
string m_StudyNumber;
private:
string m_Homework;
};
void test01()
{
Teachers tr1;
tr1.CheckHomework();
}
int main()
{
test01();
system("pause");
return 0;
}
已采纳
为什么系统一直报错说:使用了未定义的类型Students?
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