解析Json数组

 function e(){
    var json=[{"aa":"a1","bb":"b1","cc":"c1"},{"dd":"d1","ee":"e1","ff":"f1"}]//是数组 不是字符串
    var str = "";
    for (var one in json){//{"aa":"a1","bb":"b1","cc":"c1"}其中的one是整个json对象
        for(var key in json[one]){//其中的key是one中的key；
            str += json[one][key] + ",";
        }
    }
    alert(str);//a1,b1,c1,d1,e1,f1
 }