C#高級------資料字典練習

標籤：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace out_ref{    class Program    {        static void Main(string[] args)        {           //把123替換為一二三            string str = "1一 2二 3三";            string[]strs = str.Split(new char[] { ‘ ‘ }, StringSplitOptions.RemoveEmptyEntries);            Dictionary<char, char> dic = new Dictionary<char, char>();            for (int i = 0; i < strs.Length; i++)            {                if (!dic.ContainsKey(strs[i][0]))                {                    dic.Add(strs[i][0],strs[i][1]);                }            }            string res = null;            Console.WriteLine("請輸入一個數字");            string s = Console.ReadLine();            for (int i = 0; i < s.Length; i++)            {                if (dic.ContainsKey(s[i]))                {                    //根據Key獲得Value                    res += dic[s[i]];                }                else                {                    res += s[i];                }            }            Console.WriteLine(res);            Console.ReadKey();        }    }}

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace out_ref{    class Program    {        static void Main(string[] args)        {           //計算Welcome , to Chinaworld這個單詞中每個字母出現了多少次            string nums = "Welcome , to Chinaworld";            Dictionary<char, int> dic = new Dictionary<char, int>();            for (int i = 0; i < nums.Length; i++)            {                if (!dic.ContainsKey(nums[i]))                {                    dic.Add(nums[i], 1);                }                else                {                    //如果包含該字元，則把該字元++                    dic[nums[i]]++;                }            }            foreach (var item in dic)            {                Console.WriteLine("{0}個字母出現了{1}次",item.Key,item.Value);            }            Console.ReadKey();        }    }}

 

C#高級------資料字典練習