适马
适马fp系列相机获固件更新|优化Photo,Pro,M1/M2平台支持[SIGMAfpSIGMAfp?
近日,适马为旗下fp系列的SIGMA fp/SIGMA fp L两款相机,推送了新的固件更新,在增加并优化部分功能的同时,对配套软件SIGMA Photo Pro也进行了优化。[详细]
2024-03-08 06:48 分类:问答Covariance and Contravariance inference in C# 4.0
When we define our interfaces in C# 4.0, we are allowed to mark each of the generic parameters as in or out. If we try to set a generic parameter as out and that\'d lead to a problem, the compiler rai[详细]
2022-12-28 18:12 分类:问答