public function store(PincardRequest $request){

}

$request可以取得表單提交過來的值，那怎麼給這個新增值進去呢

新增的值和表單提交過來的一樣可以被呼叫

提交表單後給$request追加一個自訂的值給
PincardRequest做驗證

class PincardRequest extends Request
{

/**
 * Determine if the user is authorized to make this request.
 *
 * @return bool
 */
public function authorize()
{
    return true;
}

/**
 * Get the validation rules that apply to the request.
 *
 * @return array
 */
public function rules()
{
    return [
        'yd'=>array('required','regex:/\p{Han}/u'),

    ];
}

public function messages(){
    return [
        'yd.required'=>'不能为空！',

    ];
}

}