在类中重载了<<和>>，但还是提示没有找到，无法使用
代码如下：
#include
#include
#include
using namespace std;
class Student
{
public:
ostream& operator << (ostream & out)
{
out<<"学号:"<
return out;
}
istream& operator >> (istream & in)
{
if (&in == &cin)
{
cout<<"从键盘输入"<
cout
in>>id;
cout<<"请输入姓名：";
in>>name;
cout<<"请输入成绩1：";
in>>score[0];
cout<<"请输入成绩2：";
in>>score[1];
cout<<"请输入成绩3：";
in>>score[2];
cout<<"请输入成绩4：";
in>>score[3];
cout<<"请输入成绩5：";
in>>score[4];
cout<<"请输入成绩6：";
in>>score[5];
cout<<"请输入成绩7：";
in>>score[6];
cout<<"请输入成绩8：";
in>>score[7];
return in;
}
else
{
in>>id>>name;
for (int i = 0; i
{
in>>score[i];
}
return in;
}}
private:
string id;
string name;
float score[8];
};
int main()
{
Student s[3];
cin>>s[0];
cin>>s[1];
cin>>s[2];
ofstream out_file("Record.dat",ios::app);
for (int i = 0; i<3;++i)
{
out_file<<s[i]<<endl;
}
return 0;
}
谢谢大神
