VS2015报两个错误但不显示错误内容。。。谁帮忙看看

Question

#include <iostream>#include <string>using namespace std;/*** 定义类：Student* 数据成员：m_strName* 无参构造函数：Student()* 有参构造函数：Student(string _name)* 拷贝构造函数：Student(const Student& stu)* 析构函数：~Student()* 数据成员函数：setName(string _name)、getName()*/class student{public: student() {  cout << "student()" << endl; } student(string _name)  {  m_student = _name; cout << "student("<<_name<<")"<< endl; } student(const student& stu)  { cout << "const student& stu" << endl; } ~student()  { cout << "~student()" << endl; } void setName(string _name) { m_student = _name; } string getName() { return m_student; }private: string m_student;};int main(void){ // 通过new方式实例化对象*stu student *stu = new student; // 更改对象的数据成员为“慕课网” stu-> setName( "慕课网"); // 打印对象的数据成员 cout << stu->getName() << endl; delete stu; stu = NULL; return 0;}