PHP练习-爬楼梯问题
2020-08-14 23:56 By
"Powerless"
2808
1
2
思路分析
斐波那契数列 + 递归思想
function climb ($num)
{
if($num == 1 || $num == 2){
$c = $num;
}else{
$c = climb($num - 1) + climb($num - 2);
}
return $c;
}
echo climb(12);
结果输出：233
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