C++ 类成员函数作为参数

 #include <iostream>
 using namespace std;

 typedef int int32_t;

 struct IMsgBody{
     int body;
 };

 struct Arg{
     int arg;
 };

 class A;

 typedef int32_t (A::*GetArg_Fun)(IMsgBody *pMsgBody, Arg *stArg);    //函数指针

 class A
 {
 public:
     A(){}
     ~A(){}
     int32_t GetArg_GameEnd(IMsgBody *pMsgBody,Arg *stArg);
     int32_t GetTaskArg(IMsgBody *pMsgBody,Arg *stArg,GetArg_Fun getArg_Fun);
     int32_t GetTaskArg(IMsgBody *pMsgBody,Arg *stArg);
 };

 int32_t main()
 {
     IMsgBody msgBody;
     Arg arg;
     msgBody.body = ;
     arg.arg = ;
     A a;
     a.GetTaskArg(&msgBody,&arg);
     return ;
 }

 int32_t A::GetArg_GameEnd(IMsgBody *pMsgBody,Arg *stArg)
 {
     cout<<"pMsgBody:"<<pMsgBody->body<<endl;
     cout<<"Arg:"<<stArg->arg<<endl;
     return ;
 }

 int32_t A::GetTaskArg(IMsgBody *pMsgBody,Arg *stArg,GetArg_Fun getArg_Fun)
 {
     int ret = ;
     ret = (this->*getArg_Fun)(pMsgBody,stArg);
     cout<<"ret = "<<ret<<endl;
     return ;
 }

 int32_t A::GetTaskArg(IMsgBody *pMsgBody,Arg *stArg)
 {
     GetTaskArg(pMsgBody,stArg,&A::GetArg_GameEnd);
     return ;
 }