mysql清空表数据并重置自增ID:
## 查看
mysql> select * from work_order_company;
mysql> show create table work_order_company;
## 清除
mysql> delete from work_order_company;
mysql> alter table work_order_company auto_increment=1;
## 此时可再次查看，自增状态无显示从1开始
mysql> show create table work_order_company;