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						using
						?System;
          
						using
						?System.Collections;

          
						namespace
						?NoSortHashtable
          {
          ????          
						///
						?
						<summary>
						
								
          ????          
						///
						?Summary?description?for?Class1.
          ????          
						///
						?
						</summary>
						
								
          
						          
						????
						class
						?Class1
          ????{
          ????????          
						///
						?
						<summary>
						
								
          ????????          
						///
						?The?main?entry?point?for?the?application.
          ????????          
						///
						?
						</summary>
						
								
          
						          
						????????[STAThread]
          ????????          
						static
						?
						void
						?Main(
						string
						[]?args)
          ????????{
          ????????????Hashtable?hashTable?          
						=
						?
						new
						?Hashtable();

          ????????????hashTable.Add(          
						"
						hunan
						"
						,
						"
						changsha
						"
						);
          ????????????hashTable.Add(          
						"
						beijing
						"
						,
						"
						beijing
						"
						);
          ????????????hashTable.Add(          
						"
						anhui
						"
						,
						"
						hefei
						"
						);
          ????????????hashTable.Add(          
						"
						sichuan
						"
						,
						"
						chengdu
						"
						);
          ????????????          
						foreach
						(
						string
						?str?
						in
						?hashTable.Keys)
          ????????????{
          ????????????????Console.WriteLine(str?          
						+
						?
						"
						?:?
						"
						?
						+
						?hashTable[str]);
          ????????????}
          
						
								
          ????????}
          ????}
          }
          
				
          
				
          
				打印的結(jié)果是：
				
          ??? anhui : hefei
          ??? hunan : changsha
          ????sichuan : chengdu
          ??? beijing : beijing
          當(dāng)然，產(chǎn)生這個結(jié)果的原因大家都知道，Hashtable內(nèi)部的排序機(jī)制使然，但我現(xiàn)在就是不想排序，我按什么順序輸入的，就想它再怎么給我輸出，怎么辦？去Google酷了一下，卻因?yàn)椴恢朗褂檬裁搓P(guān)鍵字去酷，結(jié)果沒有酷出好的相關(guān)問題來。
          我想到，ArrayList是不排序的啊，那是不是讓ArrayList和Hastable配成良緣，那么它們的結(jié)晶就是我想要的呢，既有Hashtable的豐富功能，又可以滿足我的BT的要求（不排序），動手了。
          using?System;
          using?System.Collections;

          namespace?NoSortHashtable
          {
          ????          ///?<summary>
          ????          ///?Summary?description?for?NoSortedHashtable.
          ????          ///?</summary>
          ????public?class?NoSortHashtable?:?Hashtable
          ????          {
          ????????          private?ArrayList?keys?=?new?ArrayList();

          ????????          public?NoSortHashtable()
          ????????          {
          ????????}
          ????????

          ????????          public?override?void?Add(object?key,?object?value)
          ????????          {
          ????????????          base.Add?(key,?value);
          ????????????keys.Add?(key);
          ????????}

          ????????          public?override?ICollection?Keys
          ????????          {
          ????????????          get
          ????????????          {
          ????????????????          return?keys;
          ????????????}
          ????????}

          ????????          public?override?void?Clear()
          ????????          {
          ????????????          base.Clear?();
          ????????????keys.Clear?();
          ????????}

          ????????          public?override?void?Remove(object?key)
          ????????          {
          ????????????          base.Remove?(key);
          ????????????keys.Remove????(key);
          ????????}
          ????????          public?override?IDictionaryEnumerator?GetEnumerator()
          ????????          {
          ????????????          return?base.GetEnumerator?();
          ????????}

          ????}
          }
          

	
          
	
	
          
		posted on 2006-11-22 11:02     注銷..... 閱讀(416) 評論(0)  編輯  收藏  所屬分類: .net摘要 
	
          

          







          
	    
    




          








          

				

          




    







          
        
	




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