A technique or device designed to bring itself into a desired state by means of its own action; for example, a machine routine whose first few instructions are sufficient to bring the rest of itself into the computer from an input device.

• 借助自身的动作而使其达到所希望的状态的一种技术或设备；例如，一段机器例行程序，其前几条指令足以使其余部分指令从输入设备输入到计算机中。