打印1-100之间的奇数

<script>
    let b = 0;
    for (var i = 1; i < 100; i++) {
        if (i % 2 !=0) {
            document.write(i)
            b = b + i;
        }
    }
    console.log(b);
</script>

打印1-100之间不能被三整除的数

<script>
  var a = 0;
    for (var i = 1; i < 100; i++) {
        if (i % 3 != 0) {
            document.write(i);
            a += i;
        }
    } console.log(a);
</script>