csharp 使用while循环查找从1到n的数字之和。从CSharp的计算机编程基础 - http://www.introprogr

Posted 2021-05-12

Console.Write("n = ");
int n = int.Parse(Console.ReadLine());
int num = 1;
int sum = 1;
Console.Write("The sum 1");

while (num < n)
{
  num++;
  sum += num;
  Console.Write(" + " + num);
}

Console.WriteLine( " = " + sum);

// n = 6
// The sum 1 + 2 + 3 + 4 + 5 + 6 = 21