JS通过数组拼接JSON串的例子

<div id="json" style="width:100%;height:50px;background-color:yellow">
</div>  
  
<script>      
    var  params = [];  
    for(var i = 0; i < 3; i++){  
        var param = [];  
        param.push("one");  
        param.push("two");  
        param.push("three");  
        params.push({"group":i,"param":param});  
    }  
      
    var json = JSON.stringify(params);    //注意要转字符串
    alert(json);  
      
    var jsonElem = document.getElementById("json");  
    jsonElem.innerHTML = json;  
      
</script>  
  
<!-- 
    组成的json串：  
    [{"group":0,"param":["one","two","three"]},{"group":1,"param":["one","two","three"]},{"group":2,"param":["one","two","three"]}]  
-->