Your first method, annotated as shared and therefore visible externally from the class, defines the incrementer. 第一个方法被注解为shared,因此可以在这个类以外的地方看到它,它定义了递增操作。
When you want have a loop Determination of Cadmium and Lead in Tobacco by Oscillopolarography with the Macrocycle as Adsorption Incrementer 大环增敏示波极谱法测定烟草中的镉铅