A generalized instruction representing a predefined sequence of assembler language instruction 代表一个预定义的汇编语言指令序列的一种广义上的指令。
2.
There is no predefined sequence of tasks for creating interfaces or business objects ; you could have just as easily have created the business objects when creating the interface 对于创建接口或业务对象，没有预先定义的任务顺序；只需要在创建接口时简单地创建业务对象即可。
