1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading.Tasks; 6 7 namespace ConsoleApplication1suijishu 8 { 9 class Program 10 { 11 static void Main(string[] args) 12 { 13 Random rand = new Random(); 14 int irand = 0; 15 double drand = 0; 16 for (int i = 0; i < 100; i++) 17 { 18 irand = rand.Next(10,10);//随机0-10之间整数 19 Console.Write(irand+" "); 20 if (i%10==0 && i>9) 21 { 22 23 Console.WriteLine(); 24 } 25 26 } 27 Console.WriteLine("---------------------------"); 28 for (int i = 0; i < 100; i++) 29 { 30 drand = rand.NextDouble();//随机0-1之间double数 31 Console.Write(drand+" "); 32 if (i % 10 == 0 && i > 9) 33 { 34 35 Console.WriteLine(); 36 } 37 } 38 Console.WriteLine("---------------------------"); 39 for (int i = 0; i < 100; i++) 40 { 41 drand = rand.NextDouble(); 42 Console.Write(Math.Round( drand,4)+" ");//保留4位小数点后数字 43 if (i % 10 == 0 && i > 9) 44 { 45 46 Console.WriteLine(); 47 } 48 } 49 Console.WriteLine("---------------------------"); 50 51 rand = new Random(System.DateTime.Now.Millisecond); 52 for (int i = 0; i < 100; i++) 53 { 54 drand = rand.NextDouble(); 55 Console.Write(Math.Round(drand, 4) + " ");//保留4位小数点后数字 56 if (i % 10 == 0 && i > 9) 57 { 58 59 Console.WriteLine(); 60 } 61 } 62 63 Console.ReadKey(); 64 } 65 } 66 }