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详解C#对Dictionary内容的通用操作

来源:互联网 收集:自由互联 发布时间:2023-01-31
目录 一、实现效果 1.1实现的功能 1.2实现的功能效果图 二、实现核心 三、使用方法 3.1引用命名空间 3.2使用示例 一、实现效果 1.1实现的功能 ①添加信息到字典中; ②根据键获取值;
目录
  • 一、实现效果
    • 1.1实现的功能
    • 1.2实现的功能效果图
  • 二、实现核心
    • 三、使用方法
      • 3.1引用命名空间
      • 3.2使用示例

    一、实现效果

    1.1实现的功能

    ①添加信息到字典中;

    ②根据键获取值;

    ③根据值获取键;

    ④修改指定键的值;

    ⑤修改指定值为相同信息;

    ⑥根据键移除信息;

    ⑦根据值移除信息;

    1.2实现的功能效果图

    二、实现核心

    /***
    *	Title:"容器" 项目
    *		主题:Dictionary的帮助类
    *	Description:
    *		功能:
    *		    ①添加信息到字典中
    *		    ②根据键获取值
    *		    ③根据值获取键
    *		    ④修改指定键的值
    *		    ⑤修改指定值为相同信息
    *		    ⑥根据键移除信息
    *		    ⑦根据值移除信息
    *	Version:0.1版本
    *	Author:Coffee
    *	Modify Recoder:
    */
     
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
     
    namespace Utils
    {
        public class DictionaryHelper
        {
            /// <summary>
            /// 添加信息到字典中
            /// </summary>
            /// <typeparam name="TKey">键类型</typeparam>
            /// <typeparam name="TValue">值类型</typeparam>
            /// <param name="dic">字典</param>
            /// <param name="key">需添加的键</param>
            /// <param name="value">需添加的值</param>
            public static void AddInfoToDic<TKey, TValue>(Dictionary<TKey, TValue> dic, TKey key, TValue value)
            {
                if (dic == null)
                {
                    dic = new Dictionary<TKey, TValue>();
                }
     
                if (dic.ContainsKey(key))
                {
                    dic[key] = value;
                }
                else
                {
                    dic.Add(key, value);
                }
            }
     
            /// <summary>
            /// 根据键获取值
            /// </summary>
            /// <typeparam name="TKey">键类型</typeparam>
            /// <typeparam name="TValue">值类型</typeparam>
            /// <param name="dic">字典</param>
            /// <param name="key">键</param>
            /// <returns>返回键对应的值</returns>
            public static TValue GetValueOfKey<TKey, TValue>(Dictionary<TKey, TValue> dic, TKey key)
            {
                TValue tmpValue = default(TValue);
                if (dic != null && dic.Count > 0)
                {
                    if (dic.ContainsKey(key))
                    {
                        tmpValue = dic[key];
                    }
                }
                return tmpValue;
            }
     
     
            /// <summary>
            /// 根据值获取键
            /// </summary>
            /// <typeparam name="TKey">键类型</typeparam>
            /// <typeparam name="TValue">值类型</typeparam>
            /// <param name="dic">字典</param>
            /// <param name="value">值</param>
            /// <returns>返回值对应的所有键</returns>
            public static List<TKey> GetKeyOfValue<TKey, TValue>(Dictionary<TKey, TValue> dic, TValue value)
            {
                List<TKey> keyList = new List<TKey>();
                foreach (KeyValuePair<TKey, TValue> kv in dic)
                {
                    if (kv.Value.Equals(value))
                    {
                        TKey tmpKey = kv.Key;
                        keyList.Add(tmpKey);
                    }
                }
                return keyList;
            }
     
            /// <summary>
            /// 修改指定键的值
            /// </summary>
            /// <typeparam name="TKey">键类型</typeparam>
            /// <typeparam name="TValue">值类型</typeparam>
            /// <param name="dic">字典</param>
            /// <param name="needModifyKey">需要修改的键</param>
            /// <param name="replaceValue">需要替换的值</param>
            /// <returns>返回修改结果(true:表示成功)</returns>
            public static bool ModifyInfoOfKey<TKey, TValue>(Dictionary<TKey, TValue> dic, TKey needModifyKey, TValue replaceValue)
            {
                if (dic == null || dic.Count < 1) return false;
     
                if (dic.ContainsKey(needModifyKey))
                {
                    dic[needModifyKey] = replaceValue;
                    return true;
                }
                else
                {
                    return false;
                }
            }
     
            /// <summary>
            /// 修改指定值为相同信息
            /// </summary>
            /// <typeparam name="TKey">键类型</typeparam>
            /// <typeparam name="TValue">值类型</typeparam>
            /// <param name="dic">字典</param>
            /// <param name="needModifyValue">需要修改的值</param>
            /// <param name="replaceValue">需要替换的值</param>
            public static void ModifyInfoOfValue<TKey, TValue>(Dictionary<TKey, TValue> dic, TValue needModifyValue, TValue replaceValue)
            {
                if (dic == null || dic.Count < 1) return;
     
                for (int i = 0; i < dic.Count;)
                {
                    TValue tmpValue = dic.ElementAt(i).Value;
                    if (tmpValue.Equals(needModifyValue))
                    {
                        TKey tmpKey = dic.ElementAt(i).Key;
                        dic[tmpKey] = replaceValue;
     
                        i = 0;
                    }
                    else
                    {
                        i++;
                    }
                }
     
     
            }
     
            /// <summary>
            /// 根据键移除信息
            /// </summary>
            /// <typeparam name="TKey">键类型</typeparam>
            /// <typeparam name="TValue">值类型</typeparam>
            /// <param name="dic">字典</param>
            /// <param name="needDeleteKey">需要删除的键</param>
            /// <returns>返回移除结果(true:表示成功)</returns>
            public static bool RemoveInfoOfKey<TKey, TValue>(Dictionary<TKey, TValue> dic,TKey needDeleteKey)
            {
                if (dic.ContainsKey(needDeleteKey))
                {
                    dic.Remove(needDeleteKey);
     
                    return true;
                }
                else
                {
                    return false;
                }
            }
     
            /// <summary>
            /// 根据值移除信息
            /// </summary>
            /// <typeparam name="TKey">键类型</typeparam>
            /// <typeparam name="TValue">值类型</typeparam>
            /// <param name="dic">字典</param>
            /// <param name="needDeleteValue">需要删除的值</param>
            /// <returns>返回结果(true:表示成功)</returns>
            public static bool RemoveInfoOfValue<TKey, TValue>(Dictionary<TKey, TValue> dic, TValue needDeleteValue)
            {
                if (dic == null || dic.Count < 1) return false;
     
                int initCount = dic.Count;
     
                for (int i = 0; i < dic.Count;)
                {
                    TValue tmpValue = dic.ElementAt(i).Value;
                    if (tmpValue.Equals(needDeleteValue))
                    {
                        TKey tmpKey = dic.ElementAt(i).Key;
                        dic.Remove(tmpKey);
     
                        i = 0;
                    }
                    else
                    {
                        i++;
                    }
                }
     
                if (initCount > dic.Count)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
     
     
        }//Class_end
     
    }

    三、使用方法

    3.1引用命名空间

    using Utils;
    

    3.2使用示例

    using System;
    using System.Collections.Generic;
    using Utils;
     
    namespace Test_Dictionary
    {
        class Program
        {
            static void Main(string[] args)
            {
                Console.WriteLine("Hello World!");
     
                //获取到字典信息
                Dictionary<string, string> dic = GetDictionary();
                Console.WriteLine($"1-开始获取到的字典的所有信息如下:");
                ShowInfoOfDic(dic);
     
                //根据键获取到对应的值
                string queryKey = "L1";
                Console.WriteLine($"当前查询的键是:{queryKey}");
                string tmpValue = DictionaryHelper.GetValueOfKey(dic,queryKey);
                Console.WriteLine($"2-获取到——键:L1对应的值是:{tmpValue}");
     
                //根据值获取到对应的所有键
                string queryValue = "23.4";
                Console.WriteLine($"当前查询的值是:{queryValue}");
                List<string> tmpKey = DictionaryHelper.GetKeyOfValue(dic, queryValue);
                ShowInfoOfList(tmpKey);
     
                //修改指定键的值
                string needModifyKey = "L4";
                string replaceValue1 = "66";
                Console.WriteLine($"当前需要修改的键是:{needModifyKey}_替换为的值是:{replaceValue1}");
                DictionaryHelper.ModifyInfoOfKey(dic, needModifyKey, replaceValue1);
                Console.WriteLine($"修改的键是:{needModifyKey}_替换为的值是:{replaceValue1}后所有内容如下:");
                ShowInfoOfDic(dic);
     
                //修改指定值为相同信息
                string needModifyValue = "23.6";
                string replaceValue = "33.9";
                Console.WriteLine($"当前需要修改的值是:{needModifyValue}_替换为的值是:{replaceValue}");
                DictionaryHelper.ModifyInfoOfValue(dic,needModifyValue,replaceValue);
                Console.WriteLine($"修改的值是:{needModifyValue}_替换为的值是:{replaceValue}后所有内容如下:");
                ShowInfoOfDic(dic);
     
                //根据键移除信息
                string curRemoveKey = "L3";
                Console.WriteLine($"当前移除的键是:{curRemoveKey}");
                DictionaryHelper.RemoveInfoOfKey(dic,curRemoveKey);
                Console.WriteLine($"移除的键是:{curRemoveKey}后所有内容如下:");
                ShowInfoOfDic(dic);
     
                //根据值移除信息
                string curRemoveValue = "23.4";
                Console.WriteLine($"当前移除的值是:{curRemoveValue}");
                DictionaryHelper.RemoveInfoOfValue(dic, curRemoveValue);
                Console.WriteLine($"移除的值是:{curRemoveValue}后所有内容如下:");
                ShowInfoOfDic(dic);
     
                Console.ReadLine();
            }
     
            //获取一个字典
            public static Dictionary<string, string> GetDictionary()
            {
                Dictionary<string, string> dic = new Dictionary<string, string>();
     
                DictionaryHelper.AddInfoToDic(dic, "L1","23.4");
                DictionaryHelper.AddInfoToDic(dic, "L2", "23.6");
                DictionaryHelper.AddInfoToDic(dic, "L3", "23.8");
                DictionaryHelper.AddInfoToDic(dic, "L4", "23.4");
                DictionaryHelper.AddInfoToDic(dic, "L5", "23.6");
                DictionaryHelper.AddInfoToDic(dic, "L6", "23.4");
     
                return dic;
            }
     
            //显示字典中的所有信息
            private static void ShowInfoOfDic(Dictionary<string,string> dic)
            {
                if (dic == null || dic.Count < 1) return;
     
                foreach (var item in dic)
                {
                    Console.WriteLine($"键:{item.Key} 值:{item.Value}");
                }
                Console.WriteLine($"--------------显示信息完成______当前字典:{dic.GetType().Name} 共有数据:{dic.Count} 条\r\n");
            }
     
            //显示列表信息
            private static void ShowInfoOfList(List<string> list)
            {
                if (list == null || list.Count < 1) return;
                foreach (var item in list)
                {
                    Console.WriteLine($"对应内容:{item}");
                }
                Console.WriteLine($"--------------显示信息完成______当前列表:{list.GetType().Name} 共有数据:{list.Count} 条\r\n");
            }
     
        }//Class_end
    }
    

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