LINQ多个操作嵌套实现

获取集合，需要使用多个条件Where，排序OrderBy，查询Select一起。

先来分步实现：

source code:

 string[] stringArray = { "hgdgh", "qerty", "Haktjjy", "zcvz", "rtwrt" };

var contains = Enumerable.Where(stringArray, n => n.Contains("t"));

var orderby = Enumerable.OrderBy(contains, n => n.Length);

var select = Enumerable.Select(orderby, n => n.ToUpper());

var query = select;

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