如何向哨兵循環添加用戶輸入並顯示輸入？

Question

class Program 
    { 
     static void Main(string[] args) 
     { 
      int sum = 0; 
      int count = 0; 

      Console.WriteLine("Please enter all the numbers you would like to add. When finished, enter -1"); 

      string numbers = Console.ReadLine(); 

      while (numbers != "-1") 
      { 
       sum += int.Parse(numbers); 
       count++; 
       Console.WriteLine(sum); 
       numbers = Console.ReadLine(); 

      } 

     } 
    } 

當我運行它時，它會立即添加數字。我需要它，所以當用戶輸入-1時，我不能關閉它。任何幫助將不勝感激。

Answer 1

在這裏你去：

public class Program 
{ 
    public static void Main(string[] args) 
    { 
     int sum = 0; 
     int count = 0; 
     int num = 0; 

     Console.WriteLine("Please enter all the numbers you would like to add. When finished, enter -1"); 

     do 
     { 
      string buffer = Console.ReadLine(); 

      if (Int32.TryParse(buffer, out num) && num != -1) 
      { 
       sum += num; 
       count++; 
       Console.WriteLine(String.Format("Entered: [{0}], Running total over [{1}] numbers is: [{2}].", num, count, sum)); 
      } 
     } 
     while (num != -1); 
    } 
}