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HashTable例子: #region HashTable #region Add Hashtable hashTable = new Hashtable(); Hashtable hashTableNews = new Hashtable(); string[] StringArray=new string[5]; hashTableNews.Add(1, StringArray); hashTableNews.Add(1, 3); hashTableNews.Add(1,4); Console.WriteLine(hashTableNews.); object[] Array = new object[10]; hashTable.Add(1, "第一"); hashTable.Add(2, "第二"); hashTable.Add(3, "第三"); hashTable.Add(4, "第四"); hashTable.Add(5, "第五"); hashTable.Add(6, "第六"); #endregion #region Contains bool ContainsResult = hashTable.Contains(2);//查找Key值 Console.WriteLine(ContainsResult); bool ContainsKeysResult = hashTable.ContainsKey(7);//查找Key值 Console.WriteLine(ContainsKeysResult); bool ContainsValueResult = hashTable.ContainsValue("第一");//查找Value值 Console.WriteLine(ContainsValueResult); #endregion int i = hashTable.Count; Console.WriteLine(i); foreach (DictionaryEntry dicEntry in hashTable) { Console.WriteLine(" " + dicEntry.Key + " " + dicEntry.Value); } foreach (var key in hashTable.Keys) { Console.WriteLine(" " + key + " " + hashTable[key]); } Hashtable hashTableNew = (Hashtable)hashTable.Clone();//浅表复制,只复制结构 hashTable.CopyTo(Array, 3); foreach (var item in Array) { Console.WriteLine(" " + item); } DictionaryEntry[] Array1 = new DictionaryEntry[10]; hashTable.CopyTo(Array1, 3); foreach (DictionaryEntry item1 in Array1) { Console.WriteLine(" " + item1.Key + " " + item1.Value); } #region Equals Hashtable hashTable1 = new Hashtable(); hashTable1.Add(1, "第一"); hashTable1.Add(2, "第二"); hashTable1.Add(3, "第三"); hashTable1.Add(4, "第四"); hashTable1.Add(5, "第五"); hashTable1.Add(7, "第六"); bool result1 = hashTable.Equals(hashTable1); Hashtable hashTable2 = new Hashtable(); hashTable2.Add(1, "第一"); hashTable2.Add(2, "第二"); hashTable2.Add(3, "第三"); hashTable2.Add(4, "第四"); hashTable2.Add(5, "第五"); hashTable2.Add(6, "第六"); bool result2 = hashTable.Equals(hashTable2); Console.WriteLine(result2); Hashtable hashTable3 = hashTable; bool result3 = hashTable.Equals(hashTable3); Console.WriteLine(result3); #endregion Console.ReadLine(); hashTable.Remove(2); hashTable.Clear(); #endregion #region Dictionary Dictionary<string, int> dictionary = new Dictionary<string, int>(); Dictionary<string, string[]> dictionary1 = new Dictionary<string, string[]>(); Dictionary<string, ArrayList> dictionary2 = new Dictionary<string, ArrayList>(); Dictionary<string, emp> dictionary3 = new Dictionary<string, emp>(); Dictionary<string[], int> dictionary4 = new Dictionary<string[], int>(); string[] value = new string[5]; value[1] = "10"; dictionary1.Add("1", value); foreach (var item in dictionary1) { Console.WriteLine(" " + item.Key ); foreach (var items in item.Value) { Console.WriteLine(" " + items); } } Console.ReadLine(); #endregion
本系列教程: C#基础总结之八面向对象知识点总结-继承与多态-接口-http://www.cnblogs.com/spring_wang/p/6113531.html C#基础总结之七面向对象知识点总结1http://www.cnblogs.com/spring_wang/p/6113526.html C#基础总结之六 DataTable (临时表/数据源) 和Datatable 名片练习http://www.cnblogs.com/spring_wang/p/6113520.html C#基础总结之五Dictionary<string, string[]>和while循环http://www.cnblogs.com/spring_wang/p/6113514.html C#基础总结之四List-Hashtable-冒泡排序http://www.cnblogs.com/spring_wang/p/6113504.html C#基础总结之三循环控制-for-数组-乘法表-arraylisthttp://www.cnblogs.com/spring_wang/p/6113496.html C#基础总结之二循环控制-运算符http://www.cnblogs.com/spring_wang/p/6113484.html C#基础总结之一变量常量-if嵌套语句-witch结构-类型转换http://www.cnblogs.com/spring_wang/p/6113476.html C#基础课程之六(临时表)DataTable使用方法http://www.cnblogs.com/spring_wang/p/6113454.html C#基础课程之五集合(HashTable,Dictionary)http://www.cnblogs.com/spring_wang/p/6113404.html C#基础课程之四集合(ArrayList、List<泛型>)http://www.cnblogs.com/spring_wang/p/6113396.html C#基础课程之三循环语句http://www.cnblogs.com/spring_wang/p/6113383.html C#基础课程之二变量常量及流程控制http://www.cnblogs.com/spring_wang/p/6113372.html C#基础课程之一注释和控制台、一些常识http://www.cnblogs.com/spring_wang/p/6113361.html C#基础第九天-作业答案-储蓄账户(SavingAccount)和信用账户(CreditAccount) http://www.cnblogs.com/spring_wang/p/6113291.html C#基础第九天-作业-储蓄账户(SavingAccount)和信用账户(CreditAccount) http://www.cnblogs.com/spring_wang/p/6113285.html C#基础第八天-作业答案-设计类-面向对象方式实现两个帐户之间转账http://www.cnblogs.com/spring_wang/p/6113274.html C#基础第八天-作业-设计类-面向对象方式实现两个帐户之间转账http://www.cnblogs.com/spring_wang/p/6113258.html C#基础第七天-作业答案-利用面向对象的思想去实现名片-动态添加http://www.cnblogs.com/spring_wang/p/6113232.html C#基础第七天-作业-利用面向对象的思想去实现名片-动态添加http://www.cnblogs.com/spring_wang/p/6113224.html C#基础第六天-作业-利用面向对象的思想去实现名片http://www.cnblogs.com/spring_wang/p/6113028.html C#基础第六天-作业答案-利用面向对象的思想去实现名片http://www.cnblogs.com/spring_wang/p/6113033.html C#基础第五天-作业答案-用DataTable制作名片集http://www.cnblogs.com/spring_wang/p/6113022.html C#基础第五天-作业-用DataTable制作名片集http://www.cnblogs.com/spring_wang/p/6113013.html C#基础第四天-作业答案-Hashtable-list<KeyValuePair>泛型实现名片http://www.cnblogs.com/spring_wang/p/6113005.html C#基础第四天-作业-Hashtable-list<KeyValuePair>泛型实现名片http://www.cnblogs.com/spring_wang/p/6113000.html C#基础第三天-作业答案-集合-冒泡排序-模拟名片http://www.cnblogs.com/spring_wang/p/6112888.html C#基础第三天-作业-集合-冒泡排序-模拟名片http://www.cnblogs.com/spring_wang/p/6112885.html C#基础第二天-作业答案-九九乘法表-打印星星http://www.cnblogs.com/spring_wang/p/6112881.html C#基础第二天-作业-九九乘法表-打印星星http://www.cnblogs.com/spring_wang/p/6112875.html C#基础第一天-作业答案http://www.cnblogs.com/spring_wang/p/6112872.html C#基础第一天-作业http://www.cnblogs.com/spring_wang/p/6112867.html C#-string.Format对C#字符串格式化http://www.cnblogs.com/spring_wang/p/6077098.html |
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