Question

我正在做作业，我尝试过这个代码，但似乎不太好，我的作业是获得高于0的数字总和。

<?PHP
$b=array (1,2,-3,0,7,25,0,42,1,-10);
$s=0; $BUB=0; 
for($BUB=0;$BUB=10;$BUB++)
{
    if($b>0){
        $s=$s+$b;} [$bub=0];
        $BUB++;

}
echo "suma je $s" ;

?>

Answer 1

$b=array (1,2,-3,0,7,25,0,42,1,-10);

$r = array_sum(
    array_filter(
        $b,
        function ($value) {
            return $value > 0;
        }
    )
);
var_dump($r);

或

$b=array (1,2,-3,0,7,25,0,42,1,-10);

$r = array_reduce(
    $b,
    function($adder, $value) {
        return $adder += ($value > 0) ? $value : 0;
    }
);
var_dump($r);

Answer 2

$sum = 0;
foreach(array (1,2,-3,0,7,25,0,42,1,-10) as $num) {
  if($num > 0) {
    $sum += $num;
  }
}

SUM OF数字高于0

2 个答案: