django 使用Chart.js

<script>  
    var barChartData = {  
        labels : {{ listone }},           #listone 是我从views传过来的一个列表，而且我验证了，它是有值得
        datasets : [ {  
            fillColor : "rgba(220,220,220,0.5)",  
            strokeColor : "rgba(220,220,220,1)",  
            data : [ 65, 59, 90, 81, 56, 55, 40 ]  
        }, {  
            fillColor : "rgba(151,187,205,0.5)",  
            strokeColor : "rgba(151,187,205,1)",  
            data : [ 28, 48, 40, 19, 96, 27, 100 ]  
        } ]  
    };

    var ctx = document.getElementById("bar").getContext("2d");  
    var myNewChart = new Chart(ctx).Bar(barChartData);  
    //new Chart(document.getElementById("bar").getContext("2d")).Bar(barChartData);  
</script>