题解 | #跳台阶扩展问题#
跳台阶扩展问题
http://www.nowcoder.com/practice/22243d016f6b47f2a6928b4313c85387
注意n步指的是任意步，不是一次跳n步
function jumpFloorII(number)
{
// write code here
if(number===1) return 1;
if(number===2) return 2
return 2*jumpFloorII(number-1)
}
module.exports = {
jumpFloorII : jumpFloorII
};
