环球网消息，美国媒体针对中国熟悉的操作又来了。 菲律宾最近频频挑衅在南海制造紧张气氛。本周二还发生了菲律宾海警船故意冲撞我海警船，蓄意碰瓷寻衅滋事的恶性事件，而美国政府不出意料地发表声明，宣称与菲律宾站
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
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