laravel的四种路由方式：  多数我们使用第一种方式，Http方法： ~~~ // Route::get('/', '[控制器]@[行为]'); Route::put('/posts', '\App\Http\Controllers\PostController@index'); ~~~ 刚下载的laravel的预设路由： ~~~ Route::get('/', function () { return view('welcome'); }); ~~~ 路由分组： ~~~ Route::group(['prefix' => 'posts'], function(){ Route::put('/', '\App\Http\Controllers\PostController@index'); Route::put('/crate', '\App\Http\Controllers\PostController@index'); }); // 等效 Route::put('/posts', '\App\Http\Controllers\PostController@index'); Route::put('/posts/crate', '\App\Http\Controllers\PostController@index'); ~~~