本文主要利用VARIANT类型作参数进行的网络数据传送和接收，以及SAFEARRAY，BSTR的详细使用方法。另外还提供该控件在VC，VB下的调用方式以及相关数据的处理-In this paper, the use of VARIANT type for the parameters of the network data transmission and reception, and SAFEARRAY, BSTR detailed usage. Also provide the control in VC, VB, as well as the call-related data processing