我正在社区大学参加计算机编程课程,教师希望我们一会儿看一下显示数字7的阶乘。我把下面的代码编写为
using System;
namespace TheLoop
{
class TheLoop
{
static void Main(string[] args)
{
int number = 7;
long factorial = number;
while (number > 1)
factorial *= --number;
System.Console.WriteLine(factorial);
Console.ReadKey();
}
}
}
代码工作正常。但是教练希望我们显示循环的每一步,例如
1. 7 * 6 = 42
2. 42 * 5 = 210
3. 210 * 4 = 840
4. 840 * 3 = 2520
5. 2520 * 2 = 5040
and so on, other than just displaying the result
抱歉,我是C#的新手可以有人告诉我该怎么做吗?
答案 0 :(得分:2)
在您的while
内,您可以同时访问当前号码和当前因子,如下所示:
while (number > 1)
{
// Print a Console.WriteLine() in here with what you want
factorial *= --number;
}
答案 1 :(得分:-2)
这个怎么样:
int number = 7;
int i = 1;
long factorial = number;
while (number > 1)
{
factorial *= --number;
Console.WriteLine("{0}. {1} * {2} = {3}", i++, factorial/number, number, factorial);
}
Console.WriteLine(factorial);
答案 2 :(得分:-5)
System.Console.WriteLine(number +" *" + --number +" =" + factorial);
这有用吗?