视图：模板赋值与模板输出 

namespace app\controller;use think\facade\View;class Index{//第一种输出方法public function index(){// 模板变量赋值View::assign('name','ThinkPHP');View::assign('email','thinkphp@qq.com');// 或者批量赋值View::assign(['name'=> 'ThinkPHP','email' => 'thinkphp@qq.com']);// 模板输出return View::fetch('index');}//第二种输出方法 public function index(){// 模板输出并变量赋值return View::fetch('index', ['name'=> 'ThinkPHP','email' => 'thinkphp@qq.com']);} //第三种输出方法 public function index(){// view()助手函数return view('index', ['name'=> 'ThinkPHP','email' => 'thinkphp@qq.com']);}}