json eval

 var str = '[{"uname":"王强","day":"2010/06/17"},{"uname":"王海云","day":"2010/06/11"}]';
                        var jsonList=eval("("+str+")");
                       
                        for (var asdh in jsonList) {
                            alert(jsonList[asdh].uname + " > " + jsonList[asdh].day);
                        }