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//国家
var entityCountriesList = aliexpressEntities.SYS_CourierCode.Where(whereSelect.Compile()).GroupBy(p => p.ToCountries).OrderByDescending(c => c.Count()).Select(c => c.Key + "(" + c.Count() + ")").Distinct().ToList();
.net 拉姆达 groupby(p => p.X) order by count(c.Count())
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原文地址：http://www.cnblogs.com/520cc/p/4198855.html
