摘要:
lambda表达式,将会带来代码的灵活性,同时使我们的代码更具表现力。 Dim doubleIt As Func(Of Integer, Integer) = _ Function(x As Integer) x * 2上面的这个例子,是一个基本lambda表达式定义的示例。它将 doubleIt 定义为接受一个整数并返回一个整数的 lambda 表达式。该 l... 阅读全文
摘要:
selectMany Demo1: DateTime cutoffDate = new DateTime(1997, 1, 1); var orders = from c in customers where c.Region == "WA" from o in c.Orders where o.OrderDate >= cutoffDate ... 阅读全文