Mas*_*oud 19 c# lambda concatenation func
假设我有类:
public class Order
{
int OrderId {get; set;}
string CustomerName {get; set;}
}
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我也在下面声明了变量
Func<Order, bool> predicate1 = t=>t.OrderId == 5 ;
Func<Order, bool> predicate2 = t=>t.CustomerName == "Ali";
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是否有任何方法可以连接这些变量(使用AND/OR)并将结果放在第三个变量中?例如:
Func<Order, bool> predicate3 = predicate1 and predicate2;
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要么
Func<Order, bool> predicate3 = predicate1 or predicate2;
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Ste*_*ven 43
和:
Func<Order, bool> predicate3 =
order => predicate1(order) && predicate2(order);
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要么:
Func<Order, bool> predicate3 =
order => predicate1(order) || predicate2(order);
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