echarts 饼状图legend数据显示

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icon:        x : '46%',       y : '28%',       orient : 'vertical',       data:['aa','bb','cc'],       formatter: function(name) {                               var index = 0;                               var clientlabels = ['aa','bb','cc'];                               var clientcounts = [9,1,10];                               clientlabels.forEach(function(value,i){                                   if(value == name){                                       index = i;                                   }                               });                               return name + "  " + clientcounts[index];                           }   },     calculable : false,   series: [{         name: 'myCharts',       type: 'pie',      radius : '50%',       center: ['25%', '47%'],       startAngle:90,  //开始 的旋转角度         itemStyle: {           normal: {               label: {                   show: false,                   position: 'inner'                 },               labelLine: {                   show: false,               }           }       },       data: [           {value:800, name:'aa'},           {value:300, name:'bb'},            {value:200, name:'cc'},       ]     }  ] }

　　    itemWidth: 10,  // 设置宽度

　　    itemHeight: 10, // 设置高度

　　    itemGap: 40 // 设置间距