'ID', 'Uid' => '用户ID', 'Relation_id' => '关系ID', 'To_uid' => '被关联用户ID', 'Status' => '状态', 'Status 0' => '申请', 'Status 1' => '同意', 'Status 2' => '拒绝', 'Createtime' => '申请时间', 'Updatetime' => '更新时间', 'Usera.username' => '用户名', 'Userb.username' => '被关联用户名', 'Relation.name' => '关系名' ];