初学C++，有点类数组定义的问题不太明白

[HEHE8737]

以下是我刚看完类与对象这章写的小程序，发现以下注释掉的类初始化会导致析构函数double free or corruption (fasttop): 0x08c80038 *** ，编译环境linux g++。VC能运行，但是name打印出乱码，用没有注释掉的定义方式是可行的。我刚看c++几天，问的太弱希望别见怪。。。
#include<iostream>
#include<string.h>
using namespace std;

class Student
{
int age;
char *name;
public:
Student(int,char *);
Student();
~Student();
void SetName(int,char *);
int Getage(){return age;}
char *GetName(){return name;}
};

Student::Student(int m,char *n)
{
cout<<"Paramater!"<<endl;
age=m;
name=new char[strlen(n)+1];
strcpy(name,n);
}
Student::Student()
{
cout<<"No paramater!"<<endl;
age=0;
char *n="baolun";
name=new char[strlen(n)+1];
strcpy(name,n);
}
Student::~Student()
{
cout<<"Free student!"<<endl;
delete []name;
}
void Student::SetName(int m ,char *n)
{
age=m;
name=new char(strlen(n)+1);
strcpy(name,n);
}


main()
{
int i;
/* Student stu[3];
stu[0]=Student();
stu[1]=Student(21,"yanhufen");
stu[2]=Student(19,"baocaomin");*/
Student stu[3]=
{
Student(),
Student(31,"sldjfl"),
Student(19,"baocaomin")
};
for(i=0;i<3;i++)
{
cout<<"Stu["<<i<<"]: ";
cout<<"Name:"<<stu[i].GetName()<<" ";
cout<<"Age:"<<stu[i].Getage()<<endl;

}
}

[nightkids_008]

* Student stu[3];
stu[0]=Student();
stu[1]=Student(21,"yanhufen");
stu[2]=Student(19,"baocaomin");
这几句全不要，就留最后一个初始化语句就行了。

[newfarmerchi]

#include<iostream>
#include<string.h>
using namespace std;

class Student
{
int age;
char *name;
  public:
Student(int,char *);
Student();
Student(const Student &);//<------增加一个拷贝构造函数
~Student();
void SetName(int,char *);
int Getage(){return age;}
char *GetName(){return name;}
const Student &operator= (const Student &);//<--赋值运算符重载 
};

Student::Student(int m,char *n)
{
cout<<"Paramater!"<<endl;
age=m;
name=new char[strlen(n)+1];
strcpy(name,n);
}
Student::Student()
{
cout<<"No paramater!"<<endl;
age=0;
char *n="baolun";
name=new char[strlen(n)+1];
strcpy(name,n);
}
Student::Student(const Student &t)//<----------here
{
	age=t.age;
	name=new char[strlen(t.name)+1];
	strcpy(name,t.name);
}
Student::~Student()
{
cout<<"Free student!"<<endl;
delete []name;
}
void Student::SetName(int m ,char *n)
{
age=m;
name=new char(strlen(n)+1);
strcpy(name,n);
}
const Student &Student::operator= (const Student &Temp)//<--here
{
    if (&Temp != this)
    {
        age=Temp.age;
        delete [] name;
        name=new char[strlen(Temp.name)+1];
	    strcpy(name,Temp.name);
    }
    return *this;
}


main()
{
int i;
 Student stu[3];
stu[0]=Student();
stu[1]=Student(21,"yanhufen");
stu[2]=Student(19,"baocaomin");
/*Student stu[3]=
{
Student(),
Student(31,"sldjfl"),
Student(19,"baocaomin")
};*/
for(i=0;i<3;i++)
{
cout<<"Stu["<<i<<"]: ";
cout<<"Name:"<<stu[i].GetName()<<" ";
cout<<"Age:"<<stu[i].Getage()<<endl;

} 
}

[HEHE8737]

二楼的大侠说的 是正确的，但是这两种定义方式有什么区别吗？我很想知道。。。

[newfarmerchi]

第一种方法是先定义一个对象数组，每个对象调用
的都是Student()来初始化的。然后再用重载后的
赋值运算符给每个对象赋新的值。
第二种方法是定义对象数组的同时用不同的构造函数来
初始化。

[HEHE8737]

谢谢newfarmerchi！