这是我的模特:
Rx.Observable.range(num1, num2 - num1 + 1)
.scan((result, val) => result * val, 1)
.subscribe(v => console.log(v));
这是我的观点:
public function get_site_lang()
{
$query = $this->db->query("SELECT id_lang,name from LANGUAGE");
return $query->result_array();
}
public function get_compo_list($language)
{
$query = $this->db->query("SELECT m.id_menu,name from lang_menu l JOIN MENU m ON l.menu_id=m.id_menu
WHERE m.parent_id is NULL and l.lang_id=$language");
return $query->result_array();
}
public function get_compo_cat_list($id,$language)
{
$query = $this->db->query("SELECT m.id_menu,name from lang_menu l JOIN MENU m ON l.menu_id=m.id_menu
WHERE m.parent_id=$id and l.lang_id=$language");
return $query->result_array();
}
如何在&#34;选择一个孩子&#34; <div class="form-group">
<label>Select Language</label>
<select class="form-control" name="language" required>
<?php
foreach ($lang as $l) {
$selected = ($l['id_lang'] == $this->input->post('lang_id')) ? ' selected="selected"' : null;
echo '<option value="'.$l['id_lang'].'" '.$selected.'>'.$l['name'].'</option>';
}
?>
</select>
</div>
<div class="form-group">
<label>Select Parent</label>
<select name="id_menu" class="form-control" id="id_menu">
<?php
foreach ($compo as $co)
{
echo "<option value=".$co['id_menu'].">".$co['name']."</option>";
}
?>
</select>
</div>
<div class="form-group">
<label>Select Child</label>
<select class="form-control" name="type">
<option value="">Select A Child</option>
</select>
</div>
运行后我应该有哪些选项?在尝试使用(Ajax)和(JavaScript)之后,我忽略了这一点,但它无法正常工作。我在这里缺少什么?