如何在 C# 中返回数组文字
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How to return an array literal in C#
提问by sgarg
I'm trying the following code. The line with the error is pointed out.
我正在尝试以下代码。指出错误的行。
int[] myfunction()
{
{
//regular code
}
catch (Exception ex)
{
return {0,0,0}; //gives error
}
}
How can I return an array literal like string literals?
如何返回像字符串文字这样的数组文字？
采纳答案by Blorgbeard is out
Return an array of intlike this:
返回一个这样的数组int：
return new int [] { 0, 0, 0 };
You can also implicitly type the array- the compiler will infer it should be int[]because it contains only intvalues:
您还可以隐式键入数组- 编译器会推断它应该是，int[]因为它只包含int值：
return new [] { 0, 0, 0 };
回答by jb.
Blorgbeard is correct, but you also might think about using the new for .NET 4.0 Tuple class. I found it's easier to work with when you have a set number of items to return. As in if you always need to return 3 items in your array, a 3-int tuple makes it clear what it is.
Blorgbeard 是正确的，但您也可能会考虑使用新的 .NET 4.0 Tuple 类。我发现当你有一定数量的物品要返回时，它更容易处理。就像您总是需要在数组中返回 3 个项目一样，一个 3-int 元组可以清楚地表明它是什么。
return new Tuple<int,int,int>(0,0,0);
or simply
或者干脆
return Tuple.Create(0,0,0);
回答by anouar.bagari
if the array has a fixed size and you wante to return a new one filled with zeros
如果数组具有固定大小并且您想返回一个填充零的新数组
return new int[3];
