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function HashTable() 
        
{         
                
this.Items=[]; 
                
this.Count=function(){return this.Items.length;};        //长度                 
                this.DictionaryEntry=function(key,value) 
                

                        
this.Key=key||null
                        
this.Value=value||null
                }
 
                
this.Add=function(key,value){
                    
if(this.ContainsKey(key)){
                        
return false;
                    }
else{
                        
this.Items.push(new this.DictionaryEntry(key,value));
                        
return true;
                        }

                    }
 
                
this.Clear=function(){this.Items.length=0;} 
                
this.Remove=function(key) 
                

                        
var index=this.GetIndexWithKey(key); 
                        
if(index>-1)
                            
this.Items.splice(index,1); 
                }
 
                
this.GetValue=function(key) 
                

                        
var index=this.GetIndexWithKey(key); 
                        
if(index>-1)
                            
return this.Items[index].Value; 
                }
 
                
this.ContainsKey=function(key) 
                

                        
if(this.GetIndexWithKey(key)>-1)
                            
return true
                        
return false
                }
 
                
this.ContainsValue=function(value) 
                

                        
if(this.GetIndexWithValue(value)>-1)
                            
return true
                        
return false
                }
 
                
this.Keys=function() 
                

                        
var iLen=this.Count(); 
                        
var resultArr=[]; 
                        
for(var i=0;i<iLen;i++)
                            resultArr.push(
this.Items[i].Key); 
                        
return resultArr; 
                }
 
                
this.Values=function() 
                

                        
var iLen=this.Count(); 
                        
var resultArr=[]; 
                        
for(var i=0;i<iLen;i++
                            resultArr.push(
this.Items[i].Value); 
                        
return resultArr; 
                }
 
                
this.IsEmpty=function(){return this.Count()==0;} 
                
this.GetIndexWithKey=function(key) 
                

                        
var iLen=this.Count(); 
                        
for(var i=0;i<iLen;i++)
                            
if(this.Items[i].Key===key)
                                
return i; 
                        
return -1
                }
 
                
this.GetIndexWithValue=function(value) 
                

                        
var iLen=this.Count(); 
                        
for(var i=0;i<iLen;i++)
                            
if(this.Items[i].Value===value)
                                
return i; 
                        
return -1
                }
 
        }
 

        
var my=new HashTable(); 
        my.Add(
"name","blueKnight"); 
        my.Add(
"age",'24'); 
        my.Add(
"sex","boy"); 
    alert(my.Add(
"sex","sex"));//已添加过的返回false
        alert(my.Count());
        alert(my.ContainsValue(
"boy"));
        
//alert(my.GetValue("name"))
        for(var i in my.Items) //遍历
        
             alert(
"Key:"+my.Items[i].Key+"--Value:"+my.Items[i].Value); 
        }
 
        my.Remove(
"age"); //删除
        alert(my.Keys()+'-'+my.Values()+'\n\r');   
posted on 2008-04-03 12:22 rapin 阅读(398) 评论(0)  编辑  收藏 所属分类: 脚本语言

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