Question

我基本上想要输入一个字符串[]并且能够根据换行符进行foreach。我试过这样但我不相信这有效。

static string[] mystrings = {"here"+
"there"+
"mine"
}

我想要预先知道并一次取回一个。这可能吗？

Answer 1

您只需在大括号列表前添加new[]或new string[]即可。并使用逗号，而不是加号。如在

string[] mystrings = new[] { "here", "there", "mine" };

仅供参考，new[]快捷方式是C＃提供的语法糖，推断您具体指的是new string[]。如果要创建混合类型的数组（例如object的数组），则必须显式使用new object[]，否则C＃编译器将不知道您所暗示的类型。那就是：

// Doesn't work, even though assigning to variable of type object[]
object[] myArgs = new[] { '\u1234', 9, "word", new { Name = "Bob" } };

// Works
object[] myArgs = new object[] { '\u1234', 9, "word", new { Name = "Bob" } };

// Or, as Jeff pointed out, this also works -- it's still commas, though!
object[] myArgs = { '\u1234', 9, "word", new { Name = "Bob" } };

// ...althouth this does not, since there is not indication of type at all
var myArgs = { '\u1234', 9, "word", new { Name = "Bob" } };

Answer 2

static string[] myStrings = new string[] { "one", "two", "three" };

foreach(string s in myStrings)
{
     Console.WriteLine(s);
}

Answer 3

static string[] items = new[] { "here", "there", "mine" };

然后

foreach (string item in items)
{
   System.Diagnostics.Debug.WriteLine(item);
}

但请记住，数组可以初始化一次，然后您无法添加更多项目，我建议使用通用列表List<string>。

IList<string> items = new List<string> { "one", "two", "three" };

如何HardCode一个字符串数组？

3 个答案: