there are other ways of returning multiple values , as returning an array from the method, or creating a specialized class returning an instance of it .还有另外的方式返回多个值,例如从要领中返回一个数组,或者建立一个特别定义的类的实例。
+要领图
1 . instruction drawing
instruction system 指令系统instruction drawing要领图instrument 仪器,仪表