关于静态数据成员的问题
#include <iostream.h>#include <string.h>
class Student{
public:
Student(char* pName);
~Student();
protected:
static Student* pFirst;
Student* pNext;
char name[40];
};
Student* Student::pFirst =0;
Student::Student(char* pName)
{
strncpy(name,pName,sizeof(name));
name[sizeof(name)-1] ='\0';
pNext =pFirst; //每新建一个结点(对象),就将其挂在链首
pFirst =this;
}
Student::~Student()
{
cout <<this->name <<endl;
if(pFirst==this){ //如果要删除链首结点,则只要链首指针指向下一个
pFirst=pNext;
return;
}
for(Student* pS=pFirst; pS; pS=pS->pNext)
if(pS->pNext==this){ //找到时,pS指向当前结点的结点
pS->pNext=pNext; //pNext即this->pNext
return;
}
}
Student* fn()
{
Student* pS =new Student("Jenny");
Student sb("Jone");
return pS;
}
void main()
{
Student sa("Jamsa");
Student* sb =fn();
Student sc("Tracey");
delete sb;
}
在该程序中fn()返回一个对象的指针ps与指针pFrist有冲突吗?另外对于它们的析构顺序,请高手指教一下!谢谢!!!