VC++下使用ADO编写数据库程序(1)、引入ADO类(2)、初始化COM

(3)#import 包含后就可以用3个智能指针了:_ConnectionPtr、_RecordsetPtr和_CommandPtr-VC++ Prepared to use ADO database program (1), the introduction of ADO type (2), to initialize COM (3)# Import contains can be used after three pointer of the smart: _ConnectionPtr, _RecordsetPtr and _CommandPtr