java isAssignableFrom,isInstance,AnnotationUtils.findAnnotation用法讲解
isInstance方法的用法:QyConstrPerforqyConstrPerfor=newQyConstrPerfor();QyConstrPerfor.class.isInstance(qyConstrPerfor)//判断某个对象是否是属于某个类isAssignableFrom:QyConstrPerfor.class.isAssignableFrom(QyConstrPerfor.cl