Any instruction in a computer program, in a routine, or in a subroutine after the execution of which control is no longer exercised by that computer program, that routine, or that subroutine.

• 计算机程序、例程、或子例程内的具有如下功能的任何指令，执行这条指令后控制权将不再由该计算机程序、例程、或子例程行使了。