1.app/common.php底部

function addtion($items, $fields){    if(!$items)        return $items;    $fieldsArr = [];    if (!is_array($fields))    {        $arr = explode(',', $fields);        foreach ($arr as $k => $v)        {            $fieldsArr[$v] = ['field' => $v];        }    }    else    {        foreach ($fields as $k => $v)        {            if (is_array($v))            {                $v['field'] = isset($v['field']) ? $v['field'] : $k;            }            else            {                $v = ['field' => $v];            }            $fieldsArr[$v['field']] = $v;        }    }    foreach ($fieldsArr as $k => &$v)    {        $v = is_array($v) ? $v : ['field' => $v];        $v['display'] = isset($v['display']) ? $v['display'] : str_replace(['_ids', '_id'], ['_names', '_name'], $v['field']);        $v['primary'] = isset($v['primary']) ? $v['primary'] : '';        $v['column'] = isset($v['column']) ? $v['column'] : 'name';        $v['model'] = isset($v['model']) ? $v['model'] : '';        $v['table'] = isset($v['table']) ? $v['table'] : '';        $v['name'] = isset($v['name']) ? $v['name'] : str_replace(['_ids', '_id'], '', $v['field']);    }    unset($v);    $ids = [];    $fields = array_keys($fieldsArr);    foreach ($items as $k => $v)    {        foreach ($fields as $m => $n)        {            if (isset($v[$n]))            {                $ids[$n] = array_merge(isset($ids[$n]) && is_array($ids[$n]) ? $ids[$n] : [], explode(',', $v[$n]));            }        }    }    $result = [];    foreach ($fieldsArr as $k => $v)    {        if ($v['model'])        {            $model = new $v['model'];        }        else        {            $model = $v['name'] ? thinkDb::name($v['name']) : thinkDb::table($v['table']);        }        $primary = $v['primary'] ? $v['primary'] : $model->getPk();        $result[$v['field']] = $model->where($primary, 'in', $ids[$v['field']])->column("{$primary},{$v['column']}");    }    foreach ($items as $k => &$v)    {        foreach ($fields as $m => $n)        {            if (isset($v[$n]))            {                $curr = array_flip(explode(',', $v[$n]));                $v[$fieldsArr[$n]['display']] = implode(',', array_intersect_key($result[$n], $curr));            }        }    }    return $items;}

2. 在你想要的控制器加

   $list = addtion($list, 'host_ids');

   3.对应js（这个不可以搜索）

   {field: 'host_names', title: __('Host_id'), operate: false, formatter: Table.api.formatter.label},

如图我只关联一个：

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