如何在select中设置默认值？

<select>
  <option value="option1">选项1</option>
  <option value="option2" selected>选项2</option>
  <option value="option3">选项3</option>
</select>

var options = ["选项1", "选项2", "选项3"];

var select = document.createElement("select");

for (var i = 0; i < options.length; i++) {
  var option = document.createElement("option");
  option.value = "option" + (i + 1);
  option.text = options[i];
  if (i === 1) {
    option.selected = true;
  }
  select.appendChild(option);
}

document.body.appendChild(select);