C++显式具体化，交换信息

#include using namespace std;template void swap(T &a , T &b);struct ROLE{char name[40];int id;int age;};template <> void swap(ROLE &role1, ROLE &role2);//template <> void swap(ROLE &role1, ROLE &role2);void showRoleInfo(ROLE &role);template void swap(T &a, T &b){T temp;temp = a;a = b;b = temp;}template <> void swap(ROLE &role1, ROLE &role2)//template <> void swap(ROLE &role1, ROLE &role2){int temp_id;int temp_age;temp_id = role1.id;role1.id = role2.id;role2.id = temp_id;temp_age = role1.age;role1.age = role2.age;role2.age = temp_age;}void showRoleInfo(ROLE &role){cout<<role.name<<"role.id:"<<role.id<<"role.age"<<role.age<<".\n";}int main(){cout<<"干嘛这样写？？不想写了！！在“C++”看来很戳，用指针指针啦";}