category_1.id,category_1.ts,category_1.title
1,"2018-09-05 05:19:41",叶菜类
2,"2018-09-05 05:19:41",茄果类
3,"2018-09-05 05:19:41",葱蒜类
4,"2018-09-05 05:19:41",甘蓝类
5,"2018-09-05 05:19:41",薯芋类
6,"2018-09-05 05:19:41",根菜类
7,"2018-09-05 05:19:41",瓜类
8,"2018-09-05 05:19:41",豆类
9,"2018-09-05 05:19:41",其他类