斐波那契数列的小修改
/ 菲波那契数列函数/
function fib($n)
{
$cur = 1;
$prev = 0;
for ($i = 0; $i < $n; $i++) {
yield $prev;
$temp = $cur;
$cur = $prev + $cur;
$prev = $temp;
}}
$fibs = fib(9);
foreach ($fibs as $fib) {
echo $fib.PHP_EOL;
}
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