thinkphp新增

$m = M('content'); //与   $m = new Model('content')效果一样

$date = array(

　　'username' => I('username','','htmlspecialchars');

'content' => I('content','','htmlspecialchars');

　　'time' => time()

)

$result = $m->$date($data)->add();

if($result){

　　$this->success('发布成功','index');   //  $this->success('发布成功',U('Index/index'));

}else{

　　$this->error('发布失败','');   // 返回，相当于back

}