core/Form.php
public function delete($id)
    {
        if (empty($this->tbName)) {
            return;
        }
        $this->id = $id;
        DB::delete($this->tbName, $id);
        return $id;
    }
public function delete($id)
    {
        if (empty($this->tbName)) {
            return;
        }
        $this->id = $id;
        DB::delete($this->tbName, $id);
        return $id;
    }
删除值