和类有关的问题
#include <iostream>
using namespace std;
class student;
class teacher
{
private:
int id;
char* name;
public:
void get();
void assigngrade(student &a);
};//注意
class student
{
private:
static int cout;
int number;
char* name;
char* subject;
float grade;
public:
student(int num,char * nam,char*sub,float grad);//注意 函数定义在类里面的话便不能 用头文件的cout
~student();
void get();
void show();
friend class teacher;
};
student::student(int num,char * nam,char*sub,float grad)
{
number=num;
name =new char[sizeof(nam)];
strcpy(name,nam);
subject=new char[sizeof(sub)];
strcpy(subject,sub );
grade=grad;
cout++;
}
student::~student()
{
cout<<"学号：";
delete []name;
delete []subject;
cout--;
}
void student::get()
{
cout<<"请输入学号 名字 科目 成绩"<<endl;
int n=10;
int m=10;
name=new char[n];
subject=new char[m];
cin>>number>>name>>subject>>grade;
n=strlen(name)+1;
m=strlen(subject)+1;
}
void teacher::get()
{
int i;
cin>>i;
id=i;
int a=10;
name=new char[a];
cin>>name;
a=strlen(name)+1;
}
void teacher::assigngrade(student& a)
{
float b;
cin>>b;
a.grade=b;//注意当写函数原型时打分号 当直接定义函数时 不要打
}
void student::show()
{
cout<<number<<'\t'<<name<<'\t'<<subject<<'\t'<<grade<<endl;
}
int student::cout=0;
int main()
{
int n;
cout<<"请输入要输入学生的数目"<<endl;
cin>>n;
return 0;
}
为什么编辑出现这种错误 哪位大牛帮帮我这个小菜啊
Compiling...
2.cpp
E:\编程\自己的程序\郁闷的类\2.cpp(43) : error C2297: '<<' : illegal, right operand has type 'char [7]'
E:\编程\自己的程序\郁闷的类\2.cpp(50) : error C2297: '<<' : illegal, right operand has type 'char [26]'
E:\编程\自己的程序\郁闷的类\2.cpp(78) : error C2297: '<<' : illegal, right operand has type 'char *'
Error executing cl.exe.
[解决办法]
class student;
class teacher
{
private:
int id;
char* name;
public:
void get();
void assigngrade(student &a);
};//注意
class student
{
private:
static int cout;
int number;
char* name;
char* subject;
float grade;
public:
student(int num,char * nam,char*sub,float grad);//注意 函数定义在类里面的话便不能 用头文件的cout
~student();
void get();
void show();
friend class teacher;
};
student::student(int num,char * nam,char*sub,float grad)
{
number=num;
name =new char[sizeof(nam)];
strcpy(name,nam);
subject=new char[sizeof(sub)];
strcpy(subject,sub );
grade=grad;
cout++;
}
student::~student()
{
std::cout<<"学号：";
delete []name;
delete []subject;
cout--;
}
void student::get()
{
std::cout<<"请输入学号 名字 科目 成绩"<<std::endl;
int n=10;
int m=10;
name=new char[n];
subject=new char[m];
cin>>number>>name>>subject>>grade;
n=strlen(name)+1;
m=strlen(subject)+1;
}
void teacher::get()
{
int i;
cin>>i;
id=i;
int a=10;
name=new char[a];
cin>>name;
a=strlen(name)+1;
}
void teacher::assigngrade(student& a)
{
float b;
cin>>b;
a.grade=b;//注意当写函数原型时打分号 当直接定义函数时 不要打
}
void student::show()
{
std::cout<<number<<'\t'<<name<<'\t'<<subject<<'\t'<<grade<<std::endl;
}
int student::cout=0;
int main()
{
int n;
std::cout<<"请输入要输入学生的数目"<<std::endl;
std::cin>>n;
return 0;
}
把域作用符放里面吧，试试，没有error了。
[解决办法]
name =new char[sizeof(nam)]; //name=new char[strlen(nam)+1];
后面自己改
