class A
{
public:
  staticvoid staticmember(){cout<<"static"<<endl;}  //static member
  void nonstatic(){cout<<"nonstatic"<<endl;}     //nonstatic member
  virtualvoid virtualmember(){cout<<"virtual"<<endl;};//virtual member
};
int main()
{
  A a;
  //static成員函數(shù),取得的是該函數(shù)在內(nèi)存中的實際地址，而且因為static成員是全局的，所以不能用A::限定符
  void(*ptrstatic)()=&A::staticmember;   
  //nonstatic成員函數(shù) 取得的是該函數(shù)在內(nèi)存中的實際地址  
  void(A::*ptrnonstatic)()=&A::nonstatic;
  //虛函數(shù)取得的是虛函數(shù)表中的偏移值，這樣可以保證能過指針調(diào)用時同樣的多態(tài)效果
  void(A::*ptrvirtual)()=&A::virtualmember;
  //函數(shù)指針的使用方式
  ptrstatic();
  (a.*ptrnonstatic)();
  (a.*ptrvirtual)();
}

void(*pf)(char*,constchar*);
void strcpy(char* dest,constchar* source);
pf=strcpy;

void(A::*pmf)(char*,constchar*);

class A
{
　　public:
　　　void strcpy(char*,constchar*);
　　　void strcat(char*,constchar*);
};
pmf =&A::strcpy;