想按DutyType 分組，獲得每個Type數量（Number）最多的一條資料 求指教怎么寫？
if (list.Count(x => x.DutyType == "1") > 0)
{
ReList.Add(list.Where(x => x.DutyType == "1").OrderByDescending(x => x.Number).FirstOrDefault());
}
if (list.Count(x => x.DutyType == "2") > 0)
{
ReList.Add(list.Where(x => x.DutyType == "2").OrderByDescending(x => x.Number).FirstOrDefault());
}
if (list.Count(x => x.DutyType == "3") > 0)
{
ReList.Add(list.Where(x => x.DutyType == "3").OrderByDescending(x => x.Number).FirstOrDefault());
}
目前這樣寫的
uj5u.com熱心網友回復：
就是這么寫的轉載請註明出處，本文鏈接：https://www.uj5u.com/net/204069.html
標籤：C#