An aggregation operation computes a single value from a collection of values.聚合运算从值的集合中计算出单个值.Computes the arcsine ( in radians ) of the specified argument.计算指定参数的反正弦 ( 按弧度 ).For integral types, & computes the logical bi...
MCI provides applications with device - independent capabilities for controlling audio and visual peripherals.MCI给应用程序提供了控制音频与虚拟设备的设备无关特性.The main clients are peripherals materialsfor computer, computer monitors and tran...