application/core/manage/logic/ConfigLogic.php
public function modifyConfig($id, $field, $value)
    {
        $this->model->modify($id, $field, $value);
        
        return $this->clearCache();
    }
public function modifyConfig($id, $field, $value)
    {
        $this->model->modify($id, $field, $value);
        
        return $this->clearCache();
    }
更改配置

@param number $id
@param string $field
@param string $value
@return boolean