## whereIn方法 通过给定的键值数组来过滤集合 通过给定的键值数组来过滤集合。 ~~~ $collection = collect([ ['product' => 'Desk', 'price' => 200], ['product' => 'Chair', 'price' => 100], ['product' => 'Bookcase', 'price' => 150], ['product' => 'Door', 'price' => 100], ]); $filtered = $collection->whereIn('price', [150, 200]); $filtered->all(); /* [ ['product' => 'Bookcase', 'price' => 150], ['product' => 'Desk', 'price' => 200], ] */ ~~~