echarts饼图label文字在labelline上方

先上最终效果图

主要配置：

  option = {
        tooltip: {
          trigger: "item",
          formatter: "{a} 
{b}: {c} ({d}%)",
        },
        legend: {
        orient: 'vertical',
        bottom: 10,
        left:10,
        data: ['SAT', '托福', '雅思']
        },
        series: [
          {
            name: "国外考试分类",
            type: "pie",
            selectedMode: "single",
            radius: [0, "50%"],
            center:['55%','50%'],
            label: {
              position: "inner",
            },
            labelLine: {
              show: false,
            },
            color:['#7C8FFF','#FF855F','#FFCB64'],
            data: [
              { value: 335, name: "SAT" },
              { value: 1579, name: "托福" },
              { value: 1548, name: "雅思" },
            ],
          },
          {
            name: "国外考试中心",
            type: "pie",
            radius: ["40%", "55%"],
            center:['55%','50%'],
            labelLine:{
               length:30,//第一段线长
               length2:100 //第二段线长
            },
            label: {
                formatter: function(pram){
                    return '{a|'+pram.data.type+' '+pram.percent+'% }'
                },
                padding:[0,-100,20,-100],//关键代码！关键代码！关键代码！
              rich: {
                a: {
                  fontSize:14,
                  color:'#000',
                  fontWeight:500,
                  lineHeight: 32,
                  align: "right",
                },
              },
            },
            color:['#627DF3','#A3B0FE','#F96B3C','#FFAB97','#FBBD39','#FFDB98'],
            data: [
              { value: 135, name: "SAT完成任务" ,type:'SAT'},
              { value: 200, name: "SAT未完成任务"  ,type:'SAT' },
              { value: 1000, name: "托福完成任务"  ,type:'托福'},
              { value: 579, name: "托福未完成任务"  ,type:'托福'},
              { value: 1048, name: "雅思完成任务"  ,type:'雅思'},
              { value: 500, name: "雅思未完成任务"  ,type:'雅思'},
            ],
          },
        ],
      };

主要的代码就是padding的设置，一定要左右两边都设置，否则会都往一边偏移！