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User模型关联一对多

public function books(){        return $this->hasMany(UserBooks::class,'user_id');    }

新建UserBooks模型

控制器调用

$user = User::find(1);return $user->books;

显示数据

[    {        "id":1,        "user_id":1,        "book_price":"500.00",        "book_name":"Linux从入门到入土",        "created_at":"2020-06-20T14:58:56.000000Z",        "updated_at":"2020-06-20T14:58:58.000000Z",        "deleted_at":null    },    {        "id":10,        "user_id":1,        "book_price":"500.00",        "book_name":"Mysql从入门到入土",        "created_at":"2020-06-20T14:58:56.000000Z",        "updated_at":"2020-06-20T14:58:58.000000Z",        "deleted_at":null    },    {        "id":12,        "user_id":1,        "book_price":"500.00",        "book_name":"golang从入门到入土",        "created_at":"2020-06-20T14:58:56.000000Z",        "updated_at":"2020-06-20T14:58:58.000000Z",        "deleted_at":null    }]

如何列表 想获取指定的条数 可以用如下方法

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