C# List中写出LINQ类似SQL的语句

并且有一些初始化语句

List<People> PeopleList = new List<People>();
PeopleList.Add(new People() { Name = "Haocheng Wu", Age = 24 });
PeopleList.Add(new People() { Name = "Haocheng Wu", Age = 25 });
PeopleList.Add(new People() { Name = "James Wu", Age = 23 });

你就可以采用下面类似于SQL语句的方法进行select

List<string> SubPeopleNameList1 = (from people in PeopleList
                              where people.Name == "Haocheng Wu" && people.Age == 24
                              select people.Name).ToList<string>();

List<string> SubPeopleNameList2 = PeopleList.Where(people => people.Name == "Haocheng Wu" && people.Age == 24).Select(people => people.Name).ToList();

不过显然第一种方法更加一目了然，尤其是当判断条件相当复杂的时候就更加有用了

C# List中写出LINQ类似SQL的语句

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