//定义student类 //放在文件"student_class.h"里 #include<iostream.h> #include<string.h> #define N 10 class Student {public: Student(int n,char na[20],float c,float e,float g) {num=n; strcpy(name,na); ch=c; en=e; geo=g; sum=c+e+g; } void display() {cout<<num<<" "<<name<<" "<<ch<<" "<<en...

就是不明白该怎么写，怎么分析