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递归函数有关问题

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Jun 13, 2016 pm 01:42 PM

cpu

递归函数问题？
递归函数是否消耗资源，他消耗的是什么资源啊？不太明白，是cpu还是计算啊？

------解决方案--------------------
只要你要运行一些操作那么第一个损耗的必定是 CPU 其次里面的变量也是肯定会占用内存的是不是？

------解决方案--------------------
递归会增加系统开销；时间上，执行调用与返回的额外工作要占用CPU时间；空间上，随着每递归一次，栈内存就多用一截。
------解决方案--------------------

探讨
递归函数是否消耗资源，他消耗的是什么资源啊？不太明白，是cpu还是计算啊？

------解决方案--------------------
递归调用会占用栈空间，调用次数多的话可能会导致栈溢出。另外，局部变量过大的话也可能导致栈溢出。所以建议是：尽量减少递归或者尽量不用递归。

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