php语言计算1到10000的所有偶数和 急求!!求解答!!谢谢 php写1到100之间的偶数之和
php\u8bed\u8a00\u8ba1\u7b971\u523010000\u7684\u6240\u6709\u5076\u6570\u548c \u6025\u6c42!!\u6c42\u89e3\u7b54!!\u8c22\u8c22<?php
$cnt=0;
$sum=0;
for ($i=1;$i<=10000;$i++) if ($i%2==0)
{
$cnt++;
$sum+=$i;
}
echo "1\u4e07\u4ee5\u5185\u6709 $cnt \u4e2a\u5076\u6570\uff0c\u5b83\u4eec\u7684\u548c\u4e3a $sum";
?>
$num=0; for($i=0;i<=100;i=i+2) { $num=num+i; } echo $num;
\u5e0c\u671b\u91c7\u7eb3
给你个js的
<html>
<head>
<title>1-10000的偶数和</title>
</head>
<body>
<script type="text/javascript">
var t = 0;
function add(n)
{
for (var i = 0; i <=n; i+=2)
{
t += i;
}
return t;
}
document.write(add(10000));
</script>
</body>
</html>
$sum = 0;
for ( $i = 1; $i < 10001; $i++) {
if($i%2 == 0){
$sum += $i;
}
}
echo $sum;
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