w_his_kytan_gofox_trot@tg says to YSITD
想請教一下 C++ class 中的virtual method e.g. virtual void function1() 應該在.h 檔中直接寫 virtual void function1() = 0; 還是應該 .h寫 virtual void function1() ; 然後另外再開.cpp 寫 virtual void function1() = 0; ?