[英]c# Console.WriteLine();
In C#, after I write Console.WriteLine()
and I'm asked to enter several values, can I get them all in one method?在 C# 中,在我编写Console.WriteLine()
并且我被要求输入多个值后,我可以用一种方法获取它们吗? For example:例如:
double a, b, c = 0;
Console.WriteLine("please enter the values of:\n a value:\n b value: \n c value:");
thanks for the help (:谢谢您的帮助 (:
There's no BCL methods for this specific functionality, but you could use a helper function to collect these without too much repetition.没有针对此特定功能的 BCL 方法,但您可以使用辅助函数来收集这些内容,而无需过多重复。
static void Main(string[] args)
{
string RequestInput(string variableName)
{
Console.WriteLine($"{variableName}:");
return Console.ReadLine();
}
Console.WriteLine("please enter the values of:");
var a = double.Parse(RequestInput("a"));
var b = double.Parse(RequestInput("b"));
var c = double.Parse(RequestInput("c"));
}
You could do something like the following, which assumes that the user will enter a string in the console like "2.3 3.4 4.5"
.您可以执行以下操作,假设用户将在控制台中输入一个字符串,例如"2.3 3.4 4.5"
。 You may need to do some checking to make sure the input is correct.您可能需要进行一些检查以确保输入正确。
double a = 0.0, b = 0.0, c = 0.0;
Console.WriteLine("please enter the values of: a b c");
string input = Console.ReadLine();
string[] inputParts = input.Split(' ');
if (inputParts.Length > 0 && inputParts[0] != null)
{
Double.TryParse(inputParts[0], out a);
}
if (inputParts.Length > 1 && inputParts[1] != null)
{
Double.TryParse(inputParts[1], out b);
}
if (inputParts.Length > 2 && inputParts[2] != null)
{
Double.TryParse(inputParts[2], out c);
}
Console.WriteLine($"a: {a.ToString()}");
Console.WriteLine($"b: {b.ToString()}");
Console.WriteLine($"c: {c.ToString()}");
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