using System; using System.Collections.Generic; using System.Text;namespace isPrimeNumber { class Program { static void Main(string[] args) { Console.Write("请输入一个数"); int Num = Convert.ToInt32(Console.ReadLine()); int count = 0; for (int i = 2; i < Num;i++ ) { if (Num % i != 0) { count++; } } if (count == Num - 2) { Console.WriteLine("{0}为素数", Num); } else { Console.WriteLine("{0}不为素数", Num); } } } }
using System;
using System.Collections.Generic;
using System.Text;namespace isPrimeNumber
{
class Program
{
static void Main(string[] args)
{
Console.Write("请输入一个数");
int Num = Convert.ToInt32(Console.ReadLine());
int count = 0;
for (int i = 2; i < Num;i++ )
{
if (Num % i != 0)
{
count++;
}
}
if (count == Num - 2)
{
Console.WriteLine("{0}为素数", Num);
}
else
{
Console.WriteLine("{0}不为素数", Num);
}
}
}
}