已知Random.Next(1,10),产生1至100不重复的随机数据
using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace www.cnblogs.com.rock_chen{ class Program { /// <summary> /// 已知Random.Next(1,10),产生1至100不重复的随机数据 /// </summary> /// <param name="args"></param> static void Main(string[] args) { GenerateRandom generateRandom = new GenerateRandom(); var result = generateRandom.Calc(); Console.WriteLine(string.Join(",", result)); Console.WriteLine(); Console.WriteLine(string.Join(",", result.OrderBy(p => p).ToArray())); Console.Read(); } } public class GenerateRandom { Random random = new Random(); public int[] Calc() { int[] ary = new int[100]; int count = 0; int currentIndex = 0; int k = 0; while (count < 100) { var index = RandomInt(); if (ary[currentIndex] == 0) { ary[currentIndex] = index; ary[index - 1] = currentIndex + 1; currentIndex = index - 1; count = 2; continue; } if (ary[index - 1] == 0 && currentIndex != index - 1) { ary[index - 1] = ary[currentIndex]; ary[currentIndex] = index; currentIndex = index - 1; count++; } else { while (k < 100 && ary[k] > 0) { k++; } if (currentIndex != k && k < 100) { ary[k] = ary[currentIndex]; ary[currentIndex] = k + 1; currentIndex = k; count++; } } } return ary; } public int RandomInt() { return (random.Next(1, 10) - 1) * 10//10-80十位数 + random.Next(1, 10) + random.Next(1, 10) - 1 //1_17 + (random.Next(1, 10) & 3); //0-3 } }}TAG:
