factor.cpp

来自「本课程主要介绍面向对象程序设计的方法和c++语言的基本概念。以c++语言中的面向」· C++ 代码 · 共 18 行

// factor.cpp
// calculates factorials, demonstrates FOR loop
#include <iostream>
using namespace std;

int main()
   {
   unsigned int numb;                
   unsigned long fact=1;             //long for larger numbers

   cout << "Enter a number: ";
   cin >> numb;                      //get number

   for(int j=numb; j>0; j--)         //multiply 1 by
      fact *= j;                     //numb, numb-1, ..., 2, 1
   cout << "Factorial is " << fact << endl;
   return 0;
   }