Did you add the Select() after the Where() or before? You should add it after, because of the concurrency logic: 1 Take the entire table 2 ... ... <看更多>

var lines = new[]. {. "Line1", "Line2", "Line3". }; var query = lines.Select((line, index) => new. {. Prop = string.Format("Address{0}", index + 1),. ... <看更多>

各別執行 Select 及 SelectMany 後會變成下面這樣，可以注意兩個回傳型別的不同之處: IEnumerable<List<string>> afterSelect = 集合.Select(元素=> 元素.子集合); ... ... <看更多>

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