<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>奇数和</title>
<script type="text/javascript">
var sum =0;
for (var i = 1; i <= 100; i++){
if(i%2!=0){
// alert(i);
sum = sum + i;
}
}alert('奇数和是' + sum);
</script>
</head>
<body>
</body>
</html>
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