src/Leevel/Database/Select.php
public function updateIncrease(string $column, int $step = 1, array $bind = [], bool $flag = false)
    {
        return $this->updateColumn($column, '{['.$column.']+'.$step.'}', $bind, $flag);
    }
public function updateIncrease(string $column, int $step = 1, array $bind = [], bool $flag = false)
    {
        return $this->updateColumn($column, '{['.$column.']+'.$step.'}', $bind, $flag);
    }
字段递增.

@param string $column
@param int    $step
@param array  $bind
@param bool   $flag   指示是否不做任何操作只返回 SQL

@return array|int