如何在C#中的同一行中接受多个输入？

我不熟悉C#编程。我想知道如何在一行中接受多个输入。我的代码：

using System;

namespace ArrayExercise01
{
    class Program
    {
        static void Main(string[] args)
        {
            int arraySize = int.Parse(Console.ReadLine());
            int[] ar = new int[arraySize];
            int i;
            for(i=0; i<arraySize; i++) 
            {
                Console.Write("");
                ar[i] = int.Parse(Console.ReadLine());
            }
            int sum = 0;
            foreach (int arrayElement in ar)
            {
                sum += arrayElement;
            }
            Console.WriteLine(sum);
        }
    }
}

但我想做这样的事情（一行多输入）：

而不是：

ar[i] = int.Parse(Console.ReadLine());

你可以：

foreach(string s in Console.ReadLine().Split()){
  ar[i] = int.Parse(s);
  i++;
}

不带任何参数的拆分在空格上拆分，

就是其中之一。。因此，系统会提示用户输入一个字符串，用户可以输入

1

或

1 2 3 4 5

或任意组合（但如果用户输入的数字超过剩余数组所能容纳的数字，则会出现问题）。代码将它们在空间上拆分为五个字符串，分别为

“1”

“2”

“3”

“4”

“5”

，然后循环运行5次，每个字符串依次被解析并存储在数组索引中。索引

i

每次递增

---

除了检查

i

是否仍在数组长度内，建议也跳过错误输入；看看int.TryParse，如果解析没有成功，它将返回一个布尔值false；如果返回false，请不要添加到数组中/不要增加

i

尝试此操作，但要小心，输入太多的数字将导致IndexAutoFrangeException

for (int i = 0; i < arraySize; )
{
    // first catch the input
    string input = Console.ReadLine();

    // split it by space
    string[] everyNumber = input.Split(' ');

    for (int j = 0; j < everyNumber.Length; j++)
    {
        // parse each number in string array
        ar[i] = int.Parse(everyNumber[j]);
        i++;
    }
}

for（int i=0；i

根据您对“在同一行上获取多个输入”的要求，您可以按如下操作

List<int> numbers = Console.ReadLine().Split().Select(int.Parse).ToList();

程序如下所示

static void Main(string[] args)
    {
        int arraySize = int.Parse(Console.ReadLine());

        List<int> numbers = Console.ReadLine().Split().Select(int.Parse).ToList();

        while (numbers.Any() && ((numbers.Count() < arraySize) || (numbers.Count() > arraySize)))
        {
            Console.WriteLine("You have enter the numbers might be less than or greater than given size");
            Console.WriteLine("Please the numbers of given size");
            numbers = Console.ReadLine().Split().Select(int.Parse).ToList();
        }

        int sum = 0;
        foreach (var num in numbers)
        {
            sum += num;
        }
        //or you can use directly sum method as follws
        //Console.WriteLine(numbers.Sum());

        Console.WriteLine(sum);
        Console.Read();
    }

---

你可以按空间分割，怎么分割？你能给我举个例子吗？查string.Split（）。

List<int> numbers = Console.ReadLine().Split().Select(int.Parse).ToList();

while (numbers.Any() && ((numbers.Count() < arraySize) || (numbers.Count() > arraySize)))
{
  Console.WriteLine("You have enter the numbers might be less than or greater than given size");
  Console.WriteLine("Please the numbers of given size");
  numbers = Console.ReadLine().Split().Select(int.Parse).ToList();
}

int sum = 0;
foreach (var num in numbers)
{
  sum += num;
}
//or you can use directly sum method as follows
//Console.WriteLine(numbers.Sum());

static void Main(string[] args)
    {
        int arraySize = int.Parse(Console.ReadLine());

        List<int> numbers = Console.ReadLine().Split().Select(int.Parse).ToList();

        while (numbers.Any() && ((numbers.Count() < arraySize) || (numbers.Count() > arraySize)))
        {
            Console.WriteLine("You have enter the numbers might be less than or greater than given size");
            Console.WriteLine("Please the numbers of given size");
            numbers = Console.ReadLine().Split().Select(int.Parse).ToList();
        }

        int sum = 0;
        foreach (var num in numbers)
        {
            sum += num;
        }
        //or you can use directly sum method as follws
        //Console.WriteLine(numbers.Sum());

        Console.WriteLine(sum);
        Console.Read();
    }

3
1 2
You have enter the numbers might be less than or greater than given size
Please the numbers of given size
1 2 3 4
You have enter the numbers might be less than or greater than given size
Please the numbers of given size
1 2 3
6