为什么始终不能通过编译

Question

#include<iostream>using namespace std;class CStudent{ public: CStudent(char nam,int num,int gra1,int gra2,int gra3):name(nam),number(num),grade1(gra1),grade2(gra2),grade3(gra3){} void display() { cin>>name>>number>>grade1>>grade2>>grade3; int z=(grade1+grade2+grade3)%3; cout<<name<<number<<grade1<<grade2<<grade3<<z<<endl; } private: char name; int number; int grade1; int grade2; int grade3;};int main(){ CStudent stud1; stud1.display(); return 0;}

Answer 1

你好。在main函数里面，

CStudent stud1;    //你没有传入参数，当然编译不过了。
CStudent stud1('a', 123, 5, 6, 7);    //你要像这样，传入对应的参数才可以