我想這是我項目的最后一個問題。我在 1 個路由中有 2 個參數{locale}/projects/{id}/billings，問題是我在視圖中傳遞了 2 個參數值，但它仍然提示缺少必需參數的錯誤。這是我的代碼網頁.phpRoute::group(['prefix' => '{locale}', 'where' => ['locale' => '[a-zA-Z]{2}'], 'middleware' => 'setlocale'], function () {    Route::get('/', function () {    return view('welcome');    })->name('main');    Auth::routes();    Route::get('/home', 'HomeController@index')->name('home');    //Customers    Route::get('/customers', 'CustomerController@showcust')->name('customers');    Route::post('/sendcust', 'CustomerController@sendcust')->name('sendcust');    //Items    Route::get('/items', 'ItemController@showitems')->name('items');    Route::post('/senditem', 'ItemController@senditem')->name('senditem');    //Projects    Route::get('/projects', 'ProjectController@showprojects')->name('projects');    Route::post('/sendproj', 'ProjectController@sendproj')->name('sendproj');    //ProjectBillings    Route::get('/projects/{id}/billings', 'ProjectController@showbilling')->name('showbilling');    Route::post('/sendbilling', 'ProjectController@addbilling')->name('sendbilling');       //Invoices    Route::get('/invoices', 'InvoiceController@showinvoice')->name('invoices');    Route::post('/sendinvoitem', 'InvoiceController@sendinvoitem')->name('sendinvoitem');    Route::get('/invoices/{id}/details', 'InvoiceController@showdetails');    Route::post('/updateitem','InvoiceController@updatedetail')->name('updateitem');    Route::get('invoices/{id}/generate', 'InvoiceController@generate');    Route::post('/updatestatus', 'InvoiceController@changestatus')->name('updatestatus');});項目.blade.php<a href="{{route('showbilling', ['locale' => app()->getLocale(), 'id' => $cat->id])}}" class="btn btn-default btn-xs waves-effect waves-float waves-green"> {{__('Add Billing')}} </a>項目控制器.phppublic function showbilling($locale, $id){   $billings = Project::find($id);   //return $billings;   return view('admin.addbillings', compact('billings'));}