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function isNumber(str){
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        var c=str.charAt(i);
        if(mynumber.indexOf(c)==-1){
            return false;
        }
    }
    return true;
}


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JavaScript HashTable

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* ×Ô¼ºµÄ HashTable
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function HashTable(){
var values = {};

/** ½«Öµ²åÈë HashTable ÖÐ **/
this.put = function(key, value){
if(key in values){
return false;
}
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try { //Internet Explorer
xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async="false";
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parser=new DOMParser();
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