for loop
Format:
for(variable initialization ; Conditional judgment; Variable update)
{
Loop body code;
}
Example: Find 100 The sum of numbers that are divisible by 10
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>php.cn</title>
<script>
var sum = 0;
for(var i=1;i<=100;i++){
if(i%10==0){
sum+=i;
}
}
document.write("100以内能被10整除的数之和为:"+sum)
</script>
</head>
<body>
</body>
</html>