在C＃中提取字符串数组的某些部分

Question

I have a string array with 31 strings, now I have to extract string from 3rd position to 27th position and pass that part as an string array to another function. how do I accomplish this in c#?

Answer 1

You can use Array.Copy(Array, Int32, Array, Int32, Int32) overload ;

Copies a range of elements from an Array starting at the specified source index and pastes them to another Array starting at the specified destination index.

Array.Copy(source, 2, destination, 0, 25);

But this create a new array. You can use LINQ istead with Skip and Take methods like;

var destination = source.Skip(2).Take(25).ToArray();

I assume you want 27th position also, that's why I used 25 as a length (or count) in both example. If you don't want to get 27th position, you need to change 25 to 24 in both case.

Answer 2

如果您有linq，则可以执行以下操作：

var finalResult = foo(myStrings.Skip(2).Take(25).ToArray())

Answer 3

像这样尝试

  var arr2 = arr1.Select( x => x.substring(3,27));

Answer 4

如果使用LINQ，答案很简单。

var arrayToPassToMethod = array.Skip(2).Take(24).ToArray();

Answer 5

尝试这个：

string[][] result = a.Skip(2).Take(24).ToArray<string[]>();