最全的VISA类文件，可以进行与设备的各种操作。其中包括Resource Template Functions and Operations，Basic I/O Operations，Formatted and Buffered I/O Operations，viPrintf Overloads，viSPrintf Overloads，viScanf Overloads，viSScanf Overloads，Memory I/O Operations，64-bit Extension Functions，Shared Memory Operations，Interface Specific Operations，Constants