postgresql-条件表达式 简单Case表达式搜索Case表达式缩写函数总结 简单Case表达式
select
e.first_name ,
e.last_name ,
e.department_id ,
case e.department_id when 90 then 管理when 60 then 开发else 其他end as "部门"
from cps.public.employees e ;-- 统…
Yolov5网络构架实现 import torch
import torch.nn as nnclass SiLU(nn.Module):staticmethoddef forward(x):return x * torch.sigmoid(x)def autopad(k, pNone):if p is None:p k // 2 if isinstance(k, int) else [x // 2 for x in k] return pclass Focus(nn.Module):def …