也说Linq 分组
看一个例子:from p in Products group p by p.Family into g select g
那么:
1: from p in Products group p by p.Family into g select g.First()
2: (from p in Products group p by p.Family into g select g).First()
什么结果呢?
from p in Products group p by p.Family into g select g.First():
(from p in Products group p by p.Family into g select g).First():
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