Echarts 图例后面增加内容 报错option is not defind

效果

 需添加以下代码即可，与 series 平级

formatter: function(name) {let data = option.series[0].data;let total = 0;let tarValue;for (let i = 0; i < data.length; i++) {total += data[i].value;if (data[i].name === name) {tarValue = data[i].value;}}// 数量let v = tarValue;// 百分比let p = Math.round(((tarValue / total) * 100));// return `${name}  ${v}次(${p}%)`;return `${name}：${v}次`;
},

解决问题

formatter: name=> {let data = this.option.series[0].data;let total = 0;let tarValue;for (let i = 0; i < data.length; i++) {total += data[i].value;if (data[i].name === name) {tarValue = data[i].value;}}// 数量let v = tarValue;// 百分比let p = Math.round(((tarValue / total) * 100));// return `${name}  ${v}次(${p}%)`;return `${name}：${v}次`;},
},