Echarts纵坐标显示为整数小数

 chart.DoubleDeckBarChart = function (getIDParam, Legend, xAxisData, seriesName1, seriesName2, seriesData1, seriesData2, color1, color2) {

             require.config({paths: {echarts: '/lib/echarts'}});

             require(
                 [
                     'echarts',
                     'echarts/chart/bar'
                 ],
                 function (ec) {
                     var DoubleDeckBar = ec.init(getIDParam);
                     var option = {
                         tooltip: {
                             trigger: 'axis',
                             axisPointer: {            // 坐标轴指示器，坐标轴触发有效
                                 type: 'line'        // 默认为直线，可选为：'line' | 'shadow'
                             }
                         },
                         legend: {
                             data: Legend
                         },
                         grid: {
                             x: '40',
                             x2: '20',
                             y2: '50',
                             y: '38'
                         },
                         xAxis: [
                             {
                                 type: 'category',
                                 data: xAxisData,
                                 axisLabel: {
                                     rotate: 40
                                 },
                             }
                         ],
                         yAxis: [
                             {
                                 type: 'value',
                                 axisLabel: {
41                                     formatter: function (v) {
42                                         return parseInt(v)//表示整数。其他数值类型以此类推
43                                     }
44                                 }
45                                   //或者
46                                   //axisLabel: {
47                                     //formatter: function (v) {
48                                        // return v.toFixed(2);   //0表示小数为0位，1表示1位小数，2表示2位小数
49                                     //}
50                                 //},
                             }
                         ],
                         series: [
                             {
                                 name: seriesName2,
                                 type: 'bar',
                                 stack: '广告',
                                 data: seriesData2,
                                 itemStyle: {
                                     normal: {
                                         color: color2,
                                     },

                                 },
                             },
                             {
                                 name: seriesName1,
                                 type: 'bar',
                                 stack: '广告',
                                 data: seriesData1,
                                 itemStyle: {
                                     normal: {
                                         color: color1,
                                     },

                                 },
                             }

                         ]
                     };

                     DoubleDeckBar.setOption(option, true);
                 }
             );
         }