可增加
印度官员呼吁将情人节改成抱牛日|可增加幸福感[印度动物福利]?
要说牛在全世界哪里地位最高,莫过于印度了。 近日消息,据媒体报道,印度政府呼吁民众在2月14日情人节当天拥抱奶牛,以此作为庆祝活动,并建议将这天定为抱牛日”(Cow Hug Day)。[详细]
2024-03-07 07:15 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