请大家来帮我看看这代码:

#include <string.h>
#include <stdio.h>

/**
 * There're some serious issues in class Base and Subclass. 
 * You should check for current and POTENTIAL bugs in them,
 * especially memory problems.
 */

class Base
{
  private:
    char * name;
  public:
    Base(char * className)
    {
        name = new char[strlen(className)];
        strcpy(name, className);
    }

    ~Base()
    {
        delete name;
    }

    char * copyName()
    {
        char newname [256];
        strcpy(newname, name);
        return newname;
    }

    virtual char * getName()
    {
        return name;
    }

    static void print(Base base)
    {
        printf("name: %s\n" , base.name);
    }
};

class Subclass : public Base
{
  public:
    Subclass(char * className) : Base(className)
    {
    }
};

int main()
{
    Base * pBase = new Subclass("test");
    Base::print(*pBase);
    printf("name: %s\n", pBase->getName());
    printf("new name: %s\n", pBase->copyName());

    return 0;
}

提醒一点注意字符串是以\0结尾的哦，要多分配一个字节

Base::print(*pBase);
为什么不用Base．print(*pBase);
不懂，请指教！

老大，你读了题目没？
是要你找出严重的错误啊！

name = new char[strlen(className)+1];

return newname;//返回的局部变量的地址，局部变量在块结束后就失去意义

char * copyName()
{
return this;
}
静态成员函数怎么可以用非静态成员做参数呢？书上好象说不行。

#include <string.h>
#include <stdio.h>

class Base
{
private:
char *name;

public:
Base(char *className)
{
if (NULL == className)
{
name = new char[1];
*name = '\0';
}
else
{
name = new char[strlen(className)+1];
strcpy(name, className);
}
}

~Base()
{
delete [] name;
}

char * copyName()
{
/*char newname [256];
strcpy(newname, name);
return newname; */
char *pNewName = name;
return pNewName;

}

virtual char * getName()
{
return name;
}

static void print(Base &base)
{
printf("name: %s\n" , base.name);
}
};

class Subclass : public Base
{
public:
Subclass(char * className) : Base(className)
{
}
};

int main(void)
{
Base * pBase = new Subclass("test");
Base::print(*pBase);
printf("name: %s\n", pBase->getName());
printf("new name: %s\n", pBase->copyName());

return 0;
}

注意：（建议去读读C/C++高质量程序设计）
1。strcpy(name, className); // strcpy 复制时带 '\0', 所以 new 的时候应该多分配一个字符。
2。return newname; 不要返回指向栈内存的指针或引用，因为函数返回后栈回收。
3。static void print(Base base) 参数应该写成引用方式（Base &base），因为你没有编写拷贝构造函数与复制函数。