c#实现3和4的公倍数

c#实现3和4的公倍数 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace test1 { class Program { static void Main(string[] args) { int n; string s; Console.WriteLine("请输入一个数:"); s=Console.ReadLine(); n = int.Parse(s); if (n % 4 == 0 && n % 3 == 0) Console.WriteLine("该函数能同时被3和4整除"); else Console.WriteLine("该函数不能同时被3和4整除"); } } } 题目二: using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { string s; int a, b, c, d; Console.WriteLine("请输入一个三位正整数"); s = Console.ReadLine(); a = int.Parse(s); b = a/100; c = (a - b * 100) / 10; d = (a - b * 100 - 10 * c); Console.WriteLine("{0}{1}{2}",d ,c,b); } } } 2 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication7 { class Program { static void Main(string[] args) { string s; int a; s=Console.ReadLine(); a = int.Parse(s); if (a % 3 == 0 && a % 4 == 0) Console.Write("能被整除"); else Console.WriteLine("不能被整除"); } } } 2、编程将用户输入的一个三位正整数逆序输出。 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication9 { class Program { static void Main(string[] args) { string s; int a, b, c, d; Console.WriteLine("请输入一个三位数"); s = Console.ReadLine(); a = int.Parse(s); b = a % 10; c = ((a - b) % 100) / 10; d = (a - b - (a - b) % 100) / 100; Console.WriteLine("{0}{1}{2}", b, c, d); } } } 3 2、编程将用户输入的一个三位正整数逆序输出。 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ex4 { class Program { static void Main(string[] args) { string s; uint a, b, c, t, h; Console.WriteLine("请输入一个三位正整数:"); s = Console.ReadLine(); t = uint.Parse(s); a = t % 10; c = t / 100; b = (t - c * 100) / 10; h = a * 100 + b * 10 + c; if (a != 0) Console.WriteLine("逆序后的数为:{0}", h); else Console.WriteLine("逆序后的数为:0{0}", h); } } }