控制器：
$data['query'] = $this->Show_Model->get_adroidversion()->result();
$this->load->view('show',$data);被传递的数据要用$data['query']这样子搞 浪费了好长时间
视图：
<?php
echo "1. 显示android版本号<hr>";
foreach ($query as $row)
{
echo $row->version;
echo $row->api_level;
echo $row->name_en;
echo "<br>";
}
?>
