``` // 静态调用(调用模型的静态方法) User::count(); User::where('status','>',0)->count(); User::where('status',1)->avg('score'); User::max('score'); // 动态调用（实例化对象之后调用查询方法） $user = new User; $user->count(); $user->where('status','>',0)->count(); $user->where('status',1)->avg('score'); $user->max('score'); ```