#include <iostream>
#include <functional>
  
using namespace std;
  
//typedef struct {
//     int (*add)(int a, int b);
//} GFUNC_T;
  
typedef std::function<int(int a, int b)> GFUNC_T;

GFUNC_T gfun;
  
  
class Test
{
public:
     Test();
public:
     int add(int a, int b);
     int (*padd_func)(int a, int b);
};
  
int (Test::* padd_func)(int, int) = &Test::add;
  
Test::Test()
{
     // register function pointer to gfun
     //gfun.add = padd_func;
     auto lambdaWrapper = [this](int a, int b){
        return this->add(a, b);
     };
     gfun = lambdaWrapper;
     cout << "hello\n";
}
  
int Test::add(int a, int b)
{
     return a+b;
}
  
int main()
{
     Test mytest;
     cout << mytest.add(23, 44) << endl;
  
     if (gfun != NULL)
     {
         cout << gfun(10,20);
     }
  
     return 0;
}

【 在 lobachevsky 的大作中提到: 】
: 我试了一下,简化成了下面的样子(当然比你的例子复杂一点).
: 本质上,我需要在gfunc(实际上在另外一个文件里面)里面去调用执行myclass里面的函数指针.所以写得有点啰嗦:
: #include <iostream>
: ...................
--
修改:DoorWay FROM 38.75.136.*
FROM 38.75.136.*