js配列、オブジェクト、jsonを巡る

2419 ワード
json 
<html>

<head>

<title>json</title>
<script language="javascript" type="text/javascript">
        
        window.onload = function(){
            //    
            $("blsz").onclick = function(){
                 $("tta").value = "";
                //    
                var sz = ["  ","  ","   "]
                //for in  (      for  )
                for(ind in sz){
                    $("tta").value += sz[ind]+" ";  
                }
            }
            //     
            $("bldx").onclick = function(){
                //  
                $("tta").value = "";
                /*    */
                var obj = {"name":"   ","age":"45"};    
                /*    */
                for(ind in obj){
                    $("tta").value += obj[ind]+" ";
                }
            }
            //       
            $("blszdx").onclick = function(){
                $("tta").value = "";
                
                /*      */
                var szobj = [{"name":"tom","age":"24"},{"name":"marry","age":"19"}];
                /*  */
                for(ind in szobj){
                    $("tta").value += szobj[ind].name+"--->"+szobj[ind].age+"\r
";
                }
            }
        }
        
        function $(uid){
            return document.getElementById(uid);   
        }
</script>
</head>

<body>

<input type="button" value="    " id="blsz"/>|
<input type="button" value="    " id="bldx"/>|
<input type="button" value="      " id="blszdx"/><br/>
<div id="divtext"></div>

<textarea id="tta" style="font-size=20px; width:200px; height=100px;"></textarea>
</body>

</html>
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