Route::get('user/{id?}',?function?($id?=?null)?{
????//id?is?null?，?and?display?list?of?users
????if?($id?==?null)?return?'User?List';
????//id?is?not?null?,?display?the?user's?info
????else?return?'User-'.$id;
});

訪問http://localhost:8888/laravel/public/user/時(shí)候，參數(shù)為空的時(shí)候自動跳轉(zhuǎn)到了http://localhost:8888/user，服務(wù)器返回：

Not Found

The requested URL /user was not found on this server.

調(diào)試環(huán)境為MAMP，請教下這是什么原因呢 和老師的演示不一樣呀~謝謝