echarts中的series数据如何循环显示?

series: [
{
name:arr_name[0],
type:'line',
stack: '总量',
data:arr_sum_long_new[0]
},
{
name:arr_name[1],
type:'line',
stack: '总量',
data:arr_sum_long_new[1]

                },
                {
                    name:arr_name[2],
                    type:'line',
                    stack: '总量',
                    data:arr_sum_long_new[2]
                },
                {
                    name:arr_name[3],
                    type:'line',
                    stack: '总量',
                    data:arr_sum_long_new[3]

                }

            ]

怎样在series中循环动态显示该代码片?我这样在series中添加for循环有问题
显示for循环语句错误: Uncaught SyntaxError: Unexpected token var
series: 
            [
                for(var i = 0;i<json.data.length;i++){
                                        {
                                                name:arr_name[i],
                                                type:'line',
                                                stack: '总量',
                                                // data:[120, 132, 101, 134, 90, 230, 210]
                                                data:arr_sum_long_new[i]
                                        }
                 }   
            ]

循环压入一个数组中,在给series赋值给这个数组变量名称,而不是[]里面加for。。。。

     var series=[];
    for(var i = 0;i<json.data.length;i++){
        series.push({
            name: arr_name[i],
            type: 'line',
            stack: '总量',
            // data:[120, 132, 101, 134, 90, 230, 210]
            data: arr_sum_long_new[i]
        });
    }

    //...echarts配置
    series: series

http://www.oschina.net/question/2349681_232381