標籤:隨機的將1-100之間的資料添加到 ar
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Collections;namespace ConsoleApplication2{ class Program { //隨機的將1-100之間的資料添加到 ArrayList數組中 static void Main(string[] args) { ArrayList arrlist = new ArrayList(); //聲明一個數組 Random ran = new Random(); //定義一個偽隨機數產生器 while (true) { //如果arrlist數組的元素超過100個的時候就輸出arrlist的元素,然後終止程式(return) if (arrlist.Count >= 100) { arrlist.Sort(); //將arrlist資料按升序排序 foreach (int s in arrlist) { Console.Write(s+" "); } Console.ReadKey(); return; } int random = ran.Next(1, 101); //返回一個1-100之間的隨機數 if (!arrlist.Contains(random)) { arrlist.Add(random); } } } }}
用分割線分割數組的元素
namespace ConsoleApplication2{ class Program { static void Main(string[] args) { //輸出你|我|他 string[] arr = { "你", "我", "他" }; string s = null; for (int i = 0; i < arr.Length; i++) { if (i == arr.Length - 1) { s = s + arr[i]; } else { s = s + arr[i] + "|"; } } Console.WriteLine(s); Console.ReadKey(); } }}