我使用linq aggregate()和可能的Int32溢出:
items.Aggregate(0, (acc, item) => { unchecked { return acc * 10000 + item.Id; } });
有没有办法简化表达?
像async例如:
async () => {}
答案 0 :(得分:7)
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和{}
声明:
return
答案 1 :(得分:2)
出于好奇,我做了一些测试......这很有效:
unchecked
{
int res = items.Aggregate(0, (acc, item) => acc * 10000 + item.Id);
Console.WriteLine(res);
}
(我创建的测试应用为checked
,因此,如果我删除unchecked
,我会获得OverflowException
)