大家帮我看一下，没错没警告，运行出错！

#include <iostream>
#include <string>
using namespace std;
class Student
{
private:
    int age;
    char *name;
public:
    static int count;
    Student();
    Student(int m,char *n);
    ~Student();
    void Print()const;
};
int Student::count=0;
Student::Student()
{
    age=0;
    name="NULL";
}
Student::Student(int m,char *n)
{
    age=m;
    name=new char[strlen(n)+1];
    strcpy(name,n);
    count++;
}
Student::~Student()
{
    delete []name;
    count--;
}
void Student::Print()const
{
    if(name==NULL)
    {
        cout<<"name=Noname";
        cout<<"age="<<age<<endl;
    }
    else
        cout<<"name="<<name<<","<<"age="<<age<<endl;
}
int main()
{
    cout<<"count="<<Student::count<<endl;
    Student s1, *p=new Student(23,"zhanghong");
    s1.Print();
    p->Print();
    delete p;
    s1.Print();
    Student stu[4];
    cout<<"count="<<Student::count<<endl;
    return 0;
}