VC关于DLL调用的源代码，关于界面设计，DLL调用等方面，CAN总线测试编程，很有参考价值。此例程针对周立功pci-CAN9820总线接口卡开发，二次开发例程。-VC call on the DLL source code, interface design, DLL calls, etc., CAN bus test programming, a good reference value. This routine for ZLG the pci-CAN9820 bus interface