Nestedrecursion will simply gobble up the variable.
嵌套的递归将更改变量。
2
To allow recursion, a collaboration structure is nested within a class specification, which means that all instances of that class will have an internal structure specified by the class definition.
为了允许递归,协作结构被嵌套到类的规范中。这就是说这个类的所有实例都将有一个由类定义的内部结构。
3
50 limits recursion to a depth of 50 nested calls before the application is forced to terminate.