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3个阵列,达到1个数字<test>
原标题:3 arrays to 1 IEnumerable<test>
  • 时间:2011-04-05 07:37:47
  •  标签:
  • c#
  • linq

我要说的是:

 public class test
 {
     int foo;
     int foo2;
     string foo3;
 }

 int[] foo = new int[] { 1, 2, 3 };
 int[] foo2 = new int[] { 4, 5, 6 };
 string[] foo3 = new string[] { "a", "b", "c" };

我怎么能够把这3个阵列变成能够测试的E号?

TIA

页: 1

最佳回答

您可使用4.0<代码>数字。 Zip 推广方法:

foo.Zip(foo2, (first, second) => new { first, second })
    .Zip(foo3, (left, right) => new test
    {
        foo = left.first, 
        foo2 = left.second, 
        foo3 = right
    });

或者写出一种这样做的方法:

public static IEnumerable<test> FooCombiner(int[] foo,
    int[] foo2, string[] foo3)
{
    for (int index = 0; index < foo.Length; index++)
    {
        yield return new test
        {
            foo = foo[index], 
            foo2 = foo2[index], 
            foo3 = foo3[index]
        };
    }
}

最后一个例子是最可读的海事组织。

问题回答
public static IEnumerable<test> Test(int[] foo, int[] foo2, string[] foo3)
{
    // do some length checking
    for (int i = 0; i < foo.Length; i++)
    {
        yield return new test()
        {
            foo = foo[i],
            foo2 = foo2[i],
            foo3 = foo3[i]
        };
    }
}

您可以作一些长篇的检查,或使之与预告一致,但我认为,这一想法已经显示出来。

如果你不喜欢 lo,你可以使用这一守则:

List<test> result = Enumerable.Range(0, foo.Length).Select(i => new test() { foo = foo[i], foo2 = foo2[i], foo3 = foo3[i] }).ToList();




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